delete unused gyp hack

Change-Id: I042caa65ae87e4ff2d1bf81917ccbbb647a20777
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/259073
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
1 file changed