Remove unused prop

Summary:
While reading through the Inspector I found this prop passed down and not used anywhere

printer_shredder

Reviewed By: Katalune

Differential Revision: D22431895

fbshipit-source-id: 6cbc97b3faec26349a1ad900ffa455e95f53bb2b

desktop/plugins/layout/index.tsx

@@ -344,7 +344,6 @@ export default class LayoutPlugin extends FlipperPlugin<
       selectedAXElement: this.state.selectedAXElement,
       setPersistedState: this.props.setPersistedState,
       persistedState: this.props.persistedState,
-      onDataValueChanged: this.onDataValueChanged,
       searchResults: this.state.searchResults,
     };