This reverts commit b0dc518f82b2a50c1b3e3062d3b58ee221d2e028. Reason for revert: corresponding change https://chromium-review.googlesource.com/c/chromium/src/+/2765225 from chromium has not been backported to webrtc yet. Original change's description: > AV1: Use Default TX type for encoding > > This will further speed up intra frame encoding > > Bug: None > Change-Id: I1a105c6d2cdd9dc82f84d0039dbea3f0d090ab93 > Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/212320 > Reviewed-by: Marco Paniconi <marpan@webrtc.org> > Commit-Queue: Fyodor Kyslov <kyslov@google.com> > Cr-Commit-Position: refs/heads/master@{#33492} TBR=jianj@google.com,marpan@webrtc.org,kyslov@google.com Change-Id: I7ff93537942ab34706db0b71c6b5f8535209619d No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: None Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/212340 Reviewed-by: Andrey Logvin <landrey@webrtc.org> Commit-Queue: Fyodor Kyslov <kyslov@google.com> Cr-Commit-Position: refs/heads/master@{#33494}