fix: examples wlr-randr scale not work

drm is pending, commit will fail, set scale to become
invalid. do not commit and wait until the next frame to
complete the scaling settings.

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

Author: pengwenhao

examples/tinywl/main.cpp

@@ -264,8 +264,6 @@ void Helper::initProtocols(WOutputRenderWindow *window, QQmlEngine *qmlEngine)
 
             if (onlyTest)
                 ok &= output->test();
-            else
-                ok &= output->commit();
         }
         m_wOutputManager->sendResult(config, ok);
     });