remove Redundant null check at SynchronizeFileOperation.java:[line 316]

Signed-off-by: alperozturk <[email protected]>

Author: alperozturk96

Diff for: app/src/main/java/com/owncloud/android/operations/SynchronizeFileOperation.java

@@ -313,10 +313,6 @@ private void requestForDownload(OCFile file) {
                 mTransferWasRequested = true;
 
                 String filename = file.getFileName();
-                if (filename == null) {
-                    Log_OC.d(TAG,"filename is null cannot save file");
-                    return;
-                }
 
                 if (result.isSuccess()) {
                     fileDownloadHelper.saveFile(file, operation, getStorageManager());