no need to return result based on code

Signed-off-by: tobiasKaminsky <tobias@kaminsky.me>

src/main/java/com/owncloud/android/operations/RefreshFolderOperation.java

@@ -289,13 +289,6 @@ public class RefreshFolderOperation extends RemoteOperation {
             if (result.getCode() == ResultCode.FILE_NOT_FOUND) {
                 removeLocalFolder();
             }
-            if (result.getCode() == ResultCode.MAINTENANCE_MODE) {
-                return result;
-            }
-            if (result.getCode() == ResultCode.HOST_NOT_AVAILABLE ||
-                    result.getCode() == ResultCode.NO_NETWORK_CONNECTION) {
-                return result;
-            }
             if (result.isException()) {
                 Log_OC.e(TAG, "Checked " + mAccount.name + remotePath + " : " +
                         result.getLogMessage(), result.getException());