Remove command-line tool 'video_coding_test'.

Removes a lot of code that prevents refactoring VideoCodingModule. Tests
covering the module should be TEST_Fs, and this looks like like fairly
unused code in general.

Adds a 'rtp_player' binary which performs a small subset.

BUG=4391
R=stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/44559004

Cr-Original-Commit-Position: refs/heads/master@{#8787}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: d21406d333981db824d6007da9dd4f927236fbe1
24 files changed