Revert "[New Tab Animation] Add last touch position for NTP"

This reverts commit 8a5581614ef5952b5188d6f0ae4e78b810814f43.

Reason for revert: The new testLastTouchPosition test fails on android-automotive-12l-x64-rel-tests

Bug: 410819748, 415245789

Original change's description:
> [New Tab Animation] Add last touch position for NTP
>
> http://go/scrcast/NTIyOTMyODE3NzU2MTYwMHw5YmJjNzQyNS1lMQ
>
> Bug: 410819748
> Change-Id: I0798af9256a9c2224ca499e18e0e5facc9d323f0
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6506300
> Reviewed-by: Xi Han <hanxi@chromium.org>
> Reviewed-by: Jian Li <jianli@chromium.org>
> Commit-Queue: Jian Li <jianli@chromium.org>
> Reviewed-by: Calder Kitagawa <ckitagawa@chromium.org>
> Auto-Submit: Dan Polanco <polardz@google.com>
> Cr-Commit-Position: refs/heads/main@{#1454761}

Change-Id: I07d5020598d9fa4758b6f8aed9b28101d88c98d9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/6509025
Owners-Override: Ashley Newson <ashleynewson@chromium.org>
Bot-Commit: Rubber Stamper <rubber-stamper@appspot.gserviceaccount.com>
Commit-Queue: Ashley Newson <ashleynewson@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1454895}