Remove support for SW H264 High profile decoding

Also put Baseline profile in front of Constrained Baseline profile. The
reason is that the HW encoders are mostly BP, and we want this to be the
first codec in the list so that HW is preferred by default.

The H264 tests in chromium needs to be updated again with this change,
which was changed here: https://codereview.chromium.org/2985263002/.

Bug: webrtc:8317
Change-Id: Ief75683962b79b6664143d73b9259729c66ce082
Reviewed-on: https://webrtc-review.googlesource.com/17780
Reviewed-by: Rasmus Brandt <brandtr@webrtc.org>
Commit-Queue: Magnus Jedvert <magjed@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#20554}
diff --git a/modules/video_coding/codecs/h264/h264.cc b/modules/video_coding/codecs/h264/h264.cc
index d7ed3b4..b39b21b 100644
--- a/modules/video_coding/codecs/h264/h264.cc
+++ b/modules/video_coding/codecs/h264/h264.cc
@@ -66,9 +66,8 @@
   // decoder for that profile is required to be able to decode CBP. This means
   // we can encode and send CBP even though we negotiated a potentially
   // higher profile. See the H264 spec for more information.
-  return {CreateH264Format(H264::kProfileHigh, H264::kLevel3_1),
-          CreateH264Format(H264::kProfileConstrainedBaseline, H264::kLevel3_1),
-          CreateH264Format(H264::kProfileBaseline, H264::kLevel3_1)};
+  return {CreateH264Format(H264::kProfileBaseline, H264::kLevel3_1),
+          CreateH264Format(H264::kProfileConstrainedBaseline, H264::kLevel3_1)};
 }
 
 H264Encoder* H264Encoder::Create(const cricket::VideoCodec& codec) {