UID refactor 2/n Split types into client and desktop types

Summary: This file was getting overwelhming, and this seemed like a reasonable way to split it

Reviewed By: elboman

Differential Revision: D47547532

fbshipit-source-id: ab2bfa22daabbed13ec1445da0cf8ba88bda12d7

desktop/plugins/public/ui-debugger/hooks/useDelay.tsx

@@ -7,7 +7,6 @@
  * @format
  */
 
-import {Atom} from 'flipper-plugin';
 import {useEffect, useRef, useState} from 'react';
 
 export function useDelay(delayTimeMs: number) {