We should've removed this in https://crrev.com/c/2280255; by
leaving it in, the chromium build still tries to include it
when building fuchsia packages, even though it isn't needed.

TBR=jmadill@chromium.org
Bug: angleproject:3162
Change-Id: I6314a88e276b4459534344d500345ccf5de2b649
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2281553Reviewed-by: Dirk Pranke <dpranke@google.com>
Commit-Queue: Dirk Pranke <dpranke@google.com>