Merge pull request #1633 from LukeOwncloud/patch-remove-failed3

return false if remove failed

src/com/owncloud/android/datamodel/FileDataStorageManager.java

@@ -484,6 +484,8 @@ public class FileDataStorageManager {
                     }
                 }
             }
+        } else {
+            success = false;
         }
         return success;
     }