diff --git a/lib/composer/composer/autoload_classmap.php b/lib/composer/composer/autoload_classmap.php
index e35969f3e80a97d4c3871b2ddcf0c36febaa4e05..64e3a55070d508fefa8860c9dde0151280b6d327 100644
--- a/lib/composer/composer/autoload_classmap.php
+++ b/lib/composer/composer/autoload_classmap.php
@@ -1117,8 +1117,6 @@ return array(
     'OC\\Hooks\\BasicEmitter' => $baseDir . '/lib/private/Hooks/BasicEmitter.php',
     'OC\\Hooks\\Emitter' => $baseDir . '/lib/private/Hooks/Emitter.php',
     'OC\\Hooks\\EmitterTrait' => $baseDir . '/lib/private/Hooks/EmitterTrait.php',
-    'OC\\Hooks\\ForwardingEmitter' => $baseDir . '/lib/private/Hooks/ForwardingEmitter.php',
-    'OC\\Hooks\\LegacyEmitter' => $baseDir . '/lib/private/Hooks/LegacyEmitter.php',
     'OC\\Hooks\\PublicEmitter' => $baseDir . '/lib/private/Hooks/PublicEmitter.php',
     'OC\\Http\\Client\\Client' => $baseDir . '/lib/private/Http/Client/Client.php',
     'OC\\Http\\Client\\ClientService' => $baseDir . '/lib/private/Http/Client/ClientService.php',
diff --git a/lib/composer/composer/autoload_static.php b/lib/composer/composer/autoload_static.php
index 65f6f96d4640049b2aa22a5d83f1bc233c747528..5a1a46d6daca93cd975496415890533ecf9b85b2 100644
--- a/lib/composer/composer/autoload_static.php
+++ b/lib/composer/composer/autoload_static.php
@@ -1146,8 +1146,6 @@ class ComposerStaticInit53792487c5a8370acc0b06b1a864ff4c
         'OC\\Hooks\\BasicEmitter' => __DIR__ . '/../../..' . '/lib/private/Hooks/BasicEmitter.php',
         'OC\\Hooks\\Emitter' => __DIR__ . '/../../..' . '/lib/private/Hooks/Emitter.php',
         'OC\\Hooks\\EmitterTrait' => __DIR__ . '/../../..' . '/lib/private/Hooks/EmitterTrait.php',
-        'OC\\Hooks\\ForwardingEmitter' => __DIR__ . '/../../..' . '/lib/private/Hooks/ForwardingEmitter.php',
-        'OC\\Hooks\\LegacyEmitter' => __DIR__ . '/../../..' . '/lib/private/Hooks/LegacyEmitter.php',
         'OC\\Hooks\\PublicEmitter' => __DIR__ . '/../../..' . '/lib/private/Hooks/PublicEmitter.php',
         'OC\\Http\\Client\\Client' => __DIR__ . '/../../..' . '/lib/private/Http/Client/Client.php',
         'OC\\Http\\Client\\ClientService' => __DIR__ . '/../../..' . '/lib/private/Http/Client/ClientService.php',
diff --git a/lib/private/Hooks/ForwardingEmitter.php b/lib/private/Hooks/ForwardingEmitter.php
deleted file mode 100644
index 3ac6cca096afe7dc06104e75c9cc71aaa2c08086..0000000000000000000000000000000000000000
--- a/lib/private/Hooks/ForwardingEmitter.php
+++ /dev/null
@@ -1,66 +0,0 @@
-<?php
-/**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- *
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <robin@icewind.nl>
- *
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Hooks;
-
-/**
- * Class ForwardingEmitter
- *
- * allows forwarding all listen calls to other emitters
- *
- * @package OC\Hooks
- */
-abstract class ForwardingEmitter extends BasicEmitter {
-	/**
-	 * @var \OC\Hooks\Emitter[] array
-	 */
-	private $forwardEmitters = [];
-
-	/**
-	 * @param string $scope
-	 * @param string $method
-	 * @param callable $callback
-	 */
-	public function listen($scope, $method, callable $callback) {
-		parent::listen($scope, $method, $callback);
-		foreach ($this->forwardEmitters as $emitter) {
-			$emitter->listen($scope, $method, $callback);
-		}
-	}
-
-	/**
-	 * @param \OC\Hooks\Emitter $emitter
-	 */
-	protected function forward(Emitter $emitter) {
-		$this->forwardEmitters[] = $emitter;
-
-		//forward all previously connected hooks
-		foreach ($this->listeners as $key => $listeners) {
-			list($scope, $method) = explode('::', $key, 2);
-			foreach ($listeners as $listener) {
-				$emitter->listen($scope, $method, $listener);
-			}
-		}
-	}
-}
diff --git a/lib/private/Hooks/LegacyEmitter.php b/lib/private/Hooks/LegacyEmitter.php
deleted file mode 100644
index 470c5e0b11d8e4427016b955475e93966cadc7ec..0000000000000000000000000000000000000000
--- a/lib/private/Hooks/LegacyEmitter.php
+++ /dev/null
@@ -1,40 +0,0 @@
-<?php
-/**
- * @copyright Copyright (c) 2016, ownCloud, Inc.
- *
- * @author Christoph Wurst <christoph@winzerhof-wurst.at>
- * @author Lukas Reschke <lukas@statuscode.ch>
- * @author Morris Jobke <hey@morrisjobke.de>
- * @author Robin Appelman <robin@icewind.nl>
- *
- * @license AGPL-3.0
- *
- * This code is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License, version 3,
- * as published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License, version 3,
- * along with this program. If not, see <http://www.gnu.org/licenses/>
- *
- */
-
-namespace OC\Hooks;
-
-abstract class LegacyEmitter extends BasicEmitter {
-	/**
-	 * @param string $scope
-	 * @param string $method
-	 * @param array $arguments
-	 *
-	 * @suppress PhanAccessMethodProtected
-	 */
-	protected function emit($scope, $method, array $arguments = []) {
-		\OC_Hook::emit($scope, $method, $arguments);
-		parent::emit($scope, $method, $arguments);
-	}
-}
diff --git a/tests/lib/Hooks/ForwardingEmitterTest.php b/tests/lib/Hooks/ForwardingEmitterTest.php
deleted file mode 100644
index 0c073b95573ee8c91000dd7b11eb6d967b46f678..0000000000000000000000000000000000000000
--- a/tests/lib/Hooks/ForwardingEmitterTest.php
+++ /dev/null
@@ -1,75 +0,0 @@
-<?php
-/**
- * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
- * This file is licensed under the Affero General Public License version 3 or
- * later.
- * See the COPYING-README file.
- */
-
-namespace Test\Hooks;
-
-use OC\Hooks\PublicEmitter;
-
-class DummyForwardingEmitter extends \OC\Hooks\ForwardingEmitter {
-	public function emitEvent($scope, $method, $arguments = []) {
-		$this->emit($scope, $method, $arguments);
-	}
-
-	/**
-	 * @param \OC\Hooks\Emitter $emitter
-	 */
-	public function forward(\OC\Hooks\Emitter $emitter) {
-		parent::forward($emitter);
-	}
-}
-
-/**
- * Class ForwardingEmitter
- *
- * allows forwarding all listen calls to other emitters
- *
- * @package OC\Hooks
- */
-class ForwardingEmitterTest extends BasicEmitterTest {
-	public function testSingleForward() {
-		$baseEmitter = new PublicEmitter();
-		$forwardingEmitter = new DummyForwardingEmitter();
-		$forwardingEmitter->forward($baseEmitter);
-		$hookCalled = false;
-		$forwardingEmitter->listen('Test', 'test', function () use (&$hookCalled) {
-			$hookCalled = true;
-		});
-		$baseEmitter->emit('Test', 'test');
-		$this->assertTrue($hookCalled);
-	}
-
-	public function testMultipleForwards() {
-		$baseEmitter1 = new PublicEmitter();
-		$baseEmitter2 = new PublicEmitter();
-		$forwardingEmitter = new DummyForwardingEmitter();
-		$forwardingEmitter->forward($baseEmitter1);
-		$forwardingEmitter->forward($baseEmitter2);
-		$hookCalled = 0;
-		$forwardingEmitter->listen('Test', 'test1', function () use (&$hookCalled) {
-			$hookCalled++;
-		});
-		$forwardingEmitter->listen('Test', 'test2', function () use (&$hookCalled) {
-			$hookCalled++;
-		});
-		$baseEmitter1->emit('Test', 'test1');
-		$baseEmitter1->emit('Test', 'test2');
-		$this->assertEquals(2, $hookCalled);
-	}
-
-	public function testForwardExistingHooks() {
-		$baseEmitter = new PublicEmitter();
-		$forwardingEmitter = new DummyForwardingEmitter();
-		$hookCalled = false;
-		$forwardingEmitter->listen('Test', 'test', function () use (&$hookCalled) {
-			$hookCalled = true;
-		});
-		$forwardingEmitter->forward($baseEmitter);
-		$baseEmitter->emit('Test', 'test');
-		$this->assertTrue($hookCalled);
-	}
-}
diff --git a/tests/lib/Hooks/LegacyEmitterTest.php b/tests/lib/Hooks/LegacyEmitterTest.php
deleted file mode 100644
index e6b751c1f748daa9f774310c07e8f503e8f073c8..0000000000000000000000000000000000000000
--- a/tests/lib/Hooks/LegacyEmitterTest.php
+++ /dev/null
@@ -1,58 +0,0 @@
-<?php
-/**
- * Copyright (c) 2013 Robin Appelman <icewind@owncloud.com>
- * This file is licensed under the Affero General Public License version 3 or
- * later.
- * See the COPYING-README file.
- */
-
-namespace Test\Hooks;
-
-/**
- * Class DummyLegacyEmitter
- *
- * class to make LegacyEmitter::emit publicly available
- *
- * @package Test\Hooks
- */
-class DummyLegacyEmitter extends \OC\Hooks\LegacyEmitter {
-	public function emitEvent($scope, $method, $arguments = []) {
-		$this->emit($scope, $method, $arguments);
-	}
-}
-
-class LegacyEmitterTest extends BasicEmitterTest {
-
-	//we can't use exceptions here since OC_Hooks catches all exceptions
-	private static $emitted = false;
-
-	protected function setUp(): void {
-		parent::setUp();
-
-		$this->emitter = new DummyLegacyEmitter();
-		self::$emitted = false;
-		\OC_Hook::clear('Test','test');
-	}
-
-	public static function staticLegacyCallBack() {
-		self::$emitted = true;
-	}
-
-	public static function staticLegacyArgumentsCallBack($arguments) {
-		if ($arguments['foo'] == 'foo' and $arguments['bar'] == 'bar') {
-			self::$emitted = true;
-		}
-	}
-
-	public function testLegacyHook() {
-		\OC_Hook::connect('Test', 'test', '\Test\Hooks\LegacyEmitterTest', 'staticLegacyCallBack');
-		$this->emitter->emitEvent('Test', 'test');
-		$this->assertEquals(true, self::$emitted);
-	}
-
-	public function testLegacyArguments() {
-		\OC_Hook::connect('Test', 'test', '\Test\Hooks\LegacyEmitterTest', 'staticLegacyArgumentsCallBack');
-		$this->emitter->emitEvent('Test', 'test', ['foo' => 'foo', 'bar' => 'bar']);
-		$this->assertEquals(true, self::$emitted);
-	}
-}