Bug 1630208 part 4: Re-enable accessible/tests/browser/hittest/browser_test_zoom_text.js. r=yzen

The intermittent leak has been fixed, so we can now re-enable this.

Differential Revision: https://phabricator.services.mozilla.com/D79782

accessible/tests/browser/hittest/browser.ini

@@ -12,5 +12,4 @@ skip-if = os == "android"
 [browser_test_general.js]
 [browser_test_shadowroot.js]
 [browser_test_zoom_text.js]
-skip-if = (os == "linux" && bits == 64 && debug && fission) #Bug 1630208
 [browser_test_zoom.js]