Remove locks plugin.

Reasoning:
- a WebDAV server is not required to implement locking support
- WebDAV Locking is know to break the sync algorithm
- the current lock implementation is known to be broken (locks are not moved if a file is moved, locks on shared files don't work)

Author: DeepDiver1975

apps/files/appinfo/remote.php

@@ -28,7 +28,6 @@
  */
 // Backends
 $authBackend = new \OC\Connector\Sabre\Auth();
-$lockBackend = new \OC\Connector\Sabre\Locks();
 
 // Fire up server
 $objectTree = new \OC\Connector\Sabre\ObjectTree();
@@ -40,7 +39,6 @@
 // Load plugins
 $defaults = new OC_Defaults();
 $server->addPlugin(new \Sabre\DAV\Auth\Plugin($authBackend, $defaults->getName()));
-$server->addPlugin(new \Sabre\DAV\Locks\Plugin($lockBackend));
 // FIXME: The following line is a workaround for legacy components relying on being able to send a GET to /
 $server->addPlugin(new \OC\Connector\Sabre\DummyGetResponsePlugin());
 $server->addPlugin(new \OC\Connector\Sabre\FilesPlugin($objectTree));

apps/files_sharing/publicwebdav.php

@@ -34,7 +34,6 @@
 
 // Backends
 $authBackend = new OCA\Files_Sharing\Connector\PublicAuth(\OC::$server->getConfig());
-$lockBackend = new \OC\Connector\Sabre\Locks();
 
 // Fire up server
 $objectTree = new \OC\Connector\Sabre\ObjectTree();
@@ -46,7 +45,6 @@
 // Load plugins
 $defaults = new OC_Defaults();
 $server->addPlugin(new \Sabre\DAV\Auth\Plugin($authBackend, $defaults->getName()));
-$server->addPlugin(new \Sabre\DAV\Locks\Plugin($lockBackend));
 $server->addPlugin(new \Sabre\DAV\Browser\Plugin(false)); // Show something in the Browser, but no upload
 $server->addPlugin(new \OC\Connector\Sabre\FilesPlugin($objectTree));
 $server->addPlugin(new \OC\Connector\Sabre\MaintenancePlugin());