Bug 1697523 - Fix running browser_autocomplete_enter_race.js in verify mode. r=mak

Differential Revision: https://phabricator.services.mozilla.com/D108006

browser/components/urlbar/tests/browser/browser_autocomplete_enter_race.js

@@ -17,6 +17,8 @@ add_task(async function setup() {
   });
   registerCleanupFunction(async function() {
     await PlacesUtils.bookmarks.remove(bm);
+    await PlacesUtils.keywords.eraseEverything();
+    await PlacesUtils.history.clear();
   });
   await PlacesUtils.keywords.insert({
     keyword: "keyword",