Bug 1613515 - Disable browser/components/aboutconfig/test/browser/browser_edit.js as it consistently times out in Linux coverage builds. r=aryx

Differential Revision: https://phabricator.services.mozilla.com/D61994

--HG--
extra : moz-landing-system : lando

browser/components/aboutconfig/test/browser/browser.ini

@@ -7,6 +7,7 @@ support-files =
 [browser_basic.js]
 [browser_clipboard.js]
 [browser_edit.js]
+skip-if = os == 'linux' && ccov  # Bug 1613515, the test consistently times out on Linux coverage builds.
 [browser_locked.js]
 [browser_observe.js]
 [browser_search.js]