remove all GYP files

Change-Id: I66e4fb028664f1e20cd307da0a784ff5d7b9eb5e
Reviewed-on: https://skia-review.googlesource.com/8056
Commit-Queue: Hal Canary <halcanary@google.com>
Reviewed-by: Mike Klein <mtklein@chromium.org>
83 files changed