This reverts commit 3f8966f4ab.
Reason for revert: The issues identified during testing were found to be unrelated to the AVX2 code.
Original change's description:
> Deactivating AVX2 support by default
>
> This CL deactivates the AVX2 support by default due to issues identified
> during testing.
>
>
> Bug: webrtc:11663
> Change-Id: Ib42791a8da9a93c986f69bfc85def2158525af79
> Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/185818
> Reviewed-by: Mirko Bonadei <mbonadei@webrtc.org>
> Reviewed-by: Niels Moller <nisse@webrtc.org>
> Commit-Queue: Per Åhgren <peah@webrtc.org>
> Cr-Commit-Position: refs/heads/master@{#32231}
TBR=mbonadei@webrtc.org,peah@webrtc.org,nisse@webrtc.org
Change-Id: I132c9e436cfb0145c8744902b2ea3bca8c8f0f79
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: webrtc:11663
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/186044
Reviewed-by: Per Åhgren <peah@webrtc.org>
Reviewed-by: Niels Moller <nisse@webrtc.org>
Commit-Queue: Per Åhgren <peah@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#32252}
c18be4a547