tree db490406569c0379a0120a8bf3a5d66f7c011fd8
parent b335e31bcb16f53883c7d205daf25f0dc1fe2662
author zhihuang <zhihuang@webrtc.org> 1505854079 -0700
committer Commit Bot <commit-bot@chromium.org> 1505854079 +0000

Remove the support of fallback from DTLS to SDES.

The support of fallback from DTLS to SDES is removed in this CL.
Setting an SDP with both DTLS fingerprint and SDES crypto would fail.

BUG=webrtc:8266

Review-Url: https://codereview.webrtc.org/3011133002
Cr-Commit-Position: refs/heads/master@{#19903}