Removing PeerConnection sample client and libjingle from webrtc.

The new PeerConnection and sample client can be found in libjingle.
http://code.google.com/p/libjingle/

BUG=
TEST=

Review URL: https://webrtc-codereview.appspot.com/389005

git-svn-id: http://webrtc.googlecode.com/svn/trunk@1658 4adac7df-926f-26a2-2b94-8c16560cd09d
26 files changed