Remove Mach com.apple.windowserver.active access from renderer_v2.sb.

Bug: 880886
Change-Id: Ie13ab55b4b35ffe24e0cbbbaf75a9796db132631
Reviewed-on: https://chromium-review.googlesource.com/1184221Reviewed-by: Greg Kerr <kerrnel@chromium.org>
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#589192}

services/service_manager/sandbox/mac/renderer_v2.sb

@@ -69,5 +69,4 @@
   ; https://crbug.com/850021
   (global-name "com.apple.cvmsServ")
   ; crbug.com/792217
-  (global-name "com.apple.system.notification_center")
-  (global-name "com.apple.windowserver.active"))
+  (global-name "com.apple.system.notification_center"))