[DevTools] Don't select on hover (facebook#34860)

We should only persist a selection once you click. Currently, we persist
the selection if you just hover which means you lose your selection
immediately when just starting to inspect. That's not what Chrome
Elements tab does - it selects on click.

Author: sebmarkbage

packages/react-devtools-shared/src/backend/views/Highlighter/index.js

@@ -366,8 +366,6 @@ export default function setupHighlighter(
     // Don't pass the name explicitly.
     // It will be inferred from DOM tag and Fiber owner.
     showOverlay([target], null, agent, false);
-
-    selectElementForNode(target);
   }
 
   function onPointerUp(event: MouseEvent) {