remove old encryption app

apps/files_encryption/ajax/adminrecovery.php

apps/files_encryption/ajax/changeRecoveryPassword.php

apps/files_encryption/ajax/getMigrationStatus.php

apps/files_encryption/ajax/updatePrivateKeyPassword.php

apps/files_encryption/ajax/userrecovery.php

apps/files_encryption/appinfo/app.php

apps/files_encryption/appinfo/info.xml

apps/files_encryption/appinfo/register_command.php

apps/files_encryption/appinfo/routes.php

apps/files_encryption/appinfo/spec.txt

apps/files_encryption/appinfo/update.php

apps/files_encryption/appinfo/version

apps/files_encryption/command/migratekeys.php

apps/files_encryption/css/settings-personal.css

apps/files_encryption/exception/encryptionexception.php

apps/files_encryption/exception/multikeydecryptexception.php

apps/files_encryption/exception/multikeyencryptexception.php

apps/files_encryption/files/error.php

apps/files_encryption/img/app.svg

apps/files_encryption/js/detect-migration.js