Fix more forwardRef displayNames

Summary:
See https://reactjs.org/docs/forwarding-refs.html#displaying-a-custom-name-in-devtools

reapply of D8342904

Reviewed By: yungsters

Differential Revision: D8465006

fbshipit-source-id: f196f39b9b1c9bbe16a845667ebbdb21953a5848

Libraries/Text/Text.js

@@ -267,7 +267,6 @@ const Text = (
 ) => {
   return <TouchableText {...props} forwardedRef={forwardedRef} />;
 };
-Text.displayName = 'Text'; // TODO(T30332650) remove bug workaround
 // $FlowFixMe - TODO T29156721 `React.forwardRef` is not defined in Flow, yet.
 const TextToExport = React.forwardRef(Text);