The almost identical one in third_party/vulkan-loader/src/BUILD.gn
is used instead, and this one is unused.

Bug: None
Change-Id: I9d1acfdec019fb4bc74ed4869014edbf9fd64ca5
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/1947449
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Jamie Madill <jmadill@chromium.org>