remove duplicate code and add comment to wrapper component (#3076)

* remove duplicate code and add comment to wrapper component:

* use react hooks recommended settings

src/core/client/stream/tabs/Comments/Stream/AllCommentsTab/SpinnerWhileRendering/SpinnerWhileRendering.tsx

@@ -44,10 +44,6 @@ const SpinnerWhileRendering: FunctionComponent<Props> = (props) => {
     // Ensure window has bee
     return callWhenReallyIdle(() => setHidden(false));
   }, [setHidden]);
-  // In our tests, we don't actually "render", so just skip this.
-  if (process.env.NODE_ENV === "test") {
-    return <>{props.children}</>;
-  }
   return (
     <>
       {hidden && (

src/core/client/stream/tabs/Comments/Stream/AllCommentsTab/SpinnerWhileRendering/SpinnerWhileRenderingWrapper.tsx

@@ -7,6 +7,7 @@ interface Props {
 }
 
 const SpinnerWhileRenderingWrapper: FunctionComponent<Props> = (props) => {
+  // In our tests, we don't actually "render", so just skip this.
   if (process.env.NODE_ENV === "test") {
     return <>{props.children}</>;
   }