Remove include_dirs from test/test.gyp.

This is a cleanup step for having root-relative includes, include_dirs shouldn't be needed anymore.

BUG=1662
R=phoglund@webrtc.org, tina.legrand@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/1984004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4512 4adac7df-926f-26a2-2b94-8c16560cd09d
9 files changed