Bug 1615449 - disabled browser_doorhanger_installs.js on win10 64bits r=aryx

Differential Revision: https://phabricator.services.mozilla.com/D63742

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

toolkit/mozapps/extensions/test/xpinstall/browser.ini

@@ -50,6 +50,7 @@ skip-if = true # Bug 1084646
 [browser_corrupt.js]
 [browser_datauri.js]
 [browser_doorhanger_installs.js]
+skip-if = (os == 'win' && os_version == '10.0' && bits == 64) #Bug 1615449
 [browser_empty.js]
 [browser_enabled.js]
 [browser_enabled2.js]