Remove include_dirs from rtp_rtcp.

BUG=1662
TEST=compile on trybots
R=stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/2299004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4851 4adac7df-926f-26a2-2b94-8c16560cd09d
2 files changed