Issue #1656 - Remove more vim control lines.

Vim control lines were re-introduced or not entirely cleaned up.
This nukes them again.
Removing from embedding, extensions, gfx, hal, ipc, layout, mailnews,
media and memory. More to come.

media/webrtc/trunk/tools/gyp/test/ios/copies-with-xcode-envvars/copies-with-xcode-envvars.gyp

@@ -94,4 +94,3 @@
   }], # targets
 }
 
-# vim:ai:ts=4:sts=4:sw=2:expandtab:textwidth=70

media/webrtc/trunk/tools/gyp/test/mac/copies-with-xcode-envvars/copies-with-xcode-envvars.gyp

@@ -84,4 +84,3 @@
   }], # targets
 }
 
-# vim:ai:ts=4:sts=4:sw=2:expandtab:textwidth=70