Bug 1555454 - disable browser-screenshot test cases that time out on macosx1014 r=jmaher

Differential Revision: https://phabricator.services.mozilla.com/D40084

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

browser/tools/mozscreenshots/controlCenter/browser.ini

@@ -4,3 +4,4 @@ support-files =
   ../head.js
 
 [browser_controlCenter.js]
+skip-if = os == 'mac' # macosx1014 times out, see bug 1554821

browser/tools/mozscreenshots/devtools/browser.ini

@@ -4,3 +4,4 @@ support-files =
   ../head.js
 
 [browser_devtools.js]
+skip-if = os == 'mac' # times out on macosx1014, see 1570100

browser/tools/mozscreenshots/permissionPrompts/browser.ini

@@ -2,5 +2,6 @@
 subsuite = screenshots
 support-files =
   ../head.js
-
+  
 [browser_permissionPrompts.js]
+skip-if = os == 'mac' # times out on macosx1014, see 1570098

browser/tools/mozscreenshots/primaryUI/browser.ini

@@ -4,3 +4,4 @@ support-files =
   ../head.js
 
 [browser_primaryUI.js]
+skip-if = os == 'mac' # macosx1014 times out, see bug 1570102

taskcluster/ci/test/test-platforms.yml

@@ -274,7 +274,7 @@ macosx1014-64-shippable/opt:
     test-sets:
         - macosx1014-64-tests
         - macosx64-talos
-        # - desktop-screenshot-capture
+        - desktop-screenshot-capture
         - awsy
         - raptor-chromium
         - raptor-firefox
@@ -308,11 +308,6 @@ macosx1014-64-ccov/debug:
     test-sets:
         - macosx1014-64-tests
 
-macosx1010-64-shippable/opt:
-    build-platform: macosx64-shippable/opt
-    test-sets:
-        - desktop-screenshot-capture
-
 ##
 # Android platforms (matching /android-em.*/)
 #