Revert "media: Add H264 profile extraction support"

This reverts commit ffa5c05c6e68b8abfbe4f23f63292ae35d7772b6.

Reason for revert: broke webkit_tests on Mojo Linux bot. Likely something to do with gn config that lacks proprietary codecs.

Original change's description:
> media: Add H264 profile extraction support
> 
> Without the ffmpeg decoder configured, libavformat is unable to get the
> codec profile and chromium ffmpeg wrapper code choose some defaults.
> This will mess up the decode scenarios where non-ffmpeg decoders like vaapi
> are in use. Fortunately, we can still get hold of the ffmpeg's
> AVStream extradata param which should contain the
> H264 AVCDecoderConfigurationRecord (ISO/IEC 14496-15).
> So we use internal parser for extracting profile information
> from this AVCDecoderConfigurationRecord.
> 
> BUG=784610
> TEST=media_unittests:FFmpegCommonTest.VerifyH264Profile
> 
> Change-Id: Id67c7026eefb5bb73e6c5fbbab7a362cb4553ab1
> Reviewed-on: https://chromium-review.googlesource.com/c/1292605
> Commit-Queue: Chrome Cunningham <chcunningham@chromium.org>
> Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
> Reviewed-by: Chrome Cunningham <chcunningham@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#607769}

TBR=dalecurtis@chromium.org,chcunningham@chromium.org,sreerenj.balachandran@intel.com

Change-Id: I1cc9a3236d7187115566dff882c586b00dca713b
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 784610
Reviewed-on: https://chromium-review.googlesource.com/c/1334664
Reviewed-by: Chrome Cunningham <chcunningham@chromium.org>
Commit-Queue: Chrome Cunningham <chcunningham@chromium.org>
Cr-Commit-Position: refs/heads/master@{#607817}
4 files changed