[CodeHealth] Misc cleanup in PointerEvent wpts (#48983)
This is a no-op change to remove a few unused methods/features.
Change-Id: I5406533f119c052bfe63f7fffdd17e9d828b7964
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5989014
Commit-Queue: Mustaq Ahmed mustaq@chromium.org
Reviewed-by: Kevin Ellis kevers@chromium.org
Cr-Commit-Position: refs/heads/main@{#1378549}
Co-authored-by: Mustaq Ahmed mustaq@google.com