Revert "Enable constrained baseline profile for H.264 HW encode."

This reverts commit 40c17c7be606275ccde514b2b074859246752f7a.

Reason for revert: With CBP enabled for HWMFT, we are seeing abnormally
high key frame generation rate (50 to 300 frames per minute). In
addition, resolution doesn't scale up past 360p. The expectation is
720p. Reverting this commit which enabled CBP for H.264 HW Encode to
mitigate the issue.

Bug: 1295815

Original change's description:
> Enable constrained baseline profile for H.264 HW encode.
>
> This patch enables hardware H.264 CBP encoding on Windows,
> and it may have problems on other platforms, like Mac in
> https://crbug.com/1088650. Also, Nvidia RTX 2060 series are
> temporarily disabled until they provide fix to it.
>
> Bug: 982799, 1088650
> Change-Id: I0463edf30f3d7152a3dc0f8d0b41aede872efa85
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3268587
> Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
> Commit-Queue: Chunbo Hua <chunbo.hua@intel.com>
> Cr-Commit-Position: refs/heads/main@{#944358}

Bug: 982799, 1088650
Change-Id: I9d94d6290e6a186c0a445f8d277dcdb4c42bbd6e
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3450338
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Rahul Singh <rahsin@microsoft.com>
Cr-Commit-Position: refs/heads/main@{#969265}