Bug 1843792 - Part 13: Remove unused imports for toolkit/components/places/PlacesUtils.sys.mjs in html/xhtml. r=mossop

Depends on D183683

Differential Revision: https://phabricator.services.mozilla.com/D183684

dom/events/test/clipboard/test_async_clipboard.xhtml

@@ -17,9 +17,6 @@
   SimpleTest.waitForExplicitFinish();
 
   const Services = SpecialPowers.Services;
-  const { PlacesUtils } = SpecialPowers.ChromeUtils.import(
-    "resource://gre/modules/PlacesUtils.jsm"
-  );
 
   const kTextPlainMimeType = "text/plain";