Do not use recursive calling in NetEq test tools

This CL removes recursive calling in:
- NETEQTEST_DummyRTPpacket::readFromFile,
- NETEQTEST_RTPpacket::readFromFile.

The files currently exist for both NetEq3 and NetEq4, and all are
changed with this CL.

R=turaj@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/4699004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@5200 4adac7df-926f-26a2-2b94-8c16560cd09d
4 files changed