This reverts commit 28273753680514c44f30daba0f9115a3fcb6d7cb.

Reason for revert: https://issues.chromium.org/issues/334384167

Original change's description:
> immersive fullscreen: fix oom on window restore
>
> Restoring a fullscreen window that has an NSToolbar and an
> NSTitlebarAccessoryViewController causes the key view loop to become
> corrupted. The NSToolbar's view points to the
> NSTitlebarAccessoryViewController's view in the key view loop. Under
> certain circumstances this can cause an infinite loop leading to an OOM.
>
> This CL calls `-[NSWindow recalculateKeyViewLoop]` on the browser window
> after a restore. This fixes the key view loop setting the NSToolbar's
> view `-nextKeyView` to nil.
>
> Note: This bug stems from a workaround added because of FB12010731
> (NSTitlebarAccessoryViewController fullScreenMinHeight ignored). Once
> that bug is fixed this workaround can be removed.
>
> For good completeness I have also reported this bug to Apple under
> FB13724144 (restoring a fullscreen window that has an NSToolbar and an
> NSTitlebarAccessoryViewController causes the key view loop to become
> corrupted). Though we would prefer a fix for FB12010731.
>
> Bug: 324812653
> Change-Id: I813b049ec844e26c343395b7e99ff05808b3ffe8
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5445152
> Reviewed-by: Leonard Grey <lgrey@chromium.org>
> Commit-Queue: Tom Burgin <bur@google.com>
> Cr-Commit-Position: refs/heads/main@{#1286666}

(cherry picked from commit 8db844043a67f827bf5560c7f91833ecce95244f)

Bug: 324812653
Change-Id: I937217505332b9b0a185defff66d21b33264cde2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5451787
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Reviewed-by: Leonard Grey <lgrey@chromium.org>
Commit-Queue: Leonard Grey <lgrey@chromium.org>
Auto-Submit: Tom Burgin <bur@google.com>
Cr-Original-Commit-Position: refs/heads/main@{#1287321}
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5454712
Reviewed-by: Tom Burgin <bur@google.com>
Commit-Queue: Prudhvikumar Bommana <pbommana@google.com>
Owners-Override: Prudhvikumar Bommana <pbommana@google.com>
Cr-Commit-Position: refs/branch-heads/6420@{#5}
Cr-Branched-From: df576e0dad8b00dea2749a08f0849c518fa28949-refs/heads/main@{#1287100}