third_party/VulkanMemoryAllocator/OWNERS also includes owners that block
uploading.

Move the deletion of the bad files earlier in the script and rm them
instead of git rm. They may or may not be committed git files but rm
always works.

BUG=b/150892231

Change-Id: Iee60fba504ed1c16e994ed1ba83d2b7c58c0a01c
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2154537
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>