Remove unnecessary /Library/Video path from audio.sb.

Bug: 850878
Change-Id: Id8a8a9546a18671ec8654e8a73156de77a377b26
Reviewed-on: https://chromium-review.googlesource.com/1183621Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Robert Sesek <rsesek@chromium.org>
Cr-Commit-Position: refs/heads/master@{#584814}

services/service_manager/sandbox/mac/audio.sb

@@ -10,7 +10,6 @@
   (regex (user-homedir-path #"/Library/Preferences/com.apple.coreaudio.*"))
   (subpath (user-homedir-path "/Library/Audio/Plug-Ins"))
   (subpath "/Library/Audio/Plug-Ins")
-  (subpath "/Library/Video/Plug-Ins")
   (subpath "/Library/QuickTime")
   (subpath "/System/Library/Components")
   (subpath "/System/Library/Extensions"))