Remove log entry for when Marketplace QML fails to load

This is already logged with a warning by the QML engine.

Contributes to issue CURA-8556.

plugins/Marketplace/Marketplace.py

@@ -47,7 +47,6 @@ class Marketplace(Extension):
             path = os.path.join(plugin_path, "resources", "qml", "Marketplace.qml")
             self._window = CuraApplication.getInstance().createQmlComponent(path, {})
         if self._window is None:  # Still None? Failed to load the QML then.
-            Logger.error(f"Failed to load QML for Marketplace window.")
             return
         self._window.show()
         self._window.requestActivate()  # Bring window into focus, if it was already open in the background.