prepare for NDK r18

NDK r18 will remove GCC, so we will no longer be able to run
build/android-arm-gcc.  It's probably never been relevant.

Change-Id: I94b10c0dfe77463e45149b67c7d952947a3e066e
Reviewed-on: https://skia-review.googlesource.com/145736
Commit-Queue: Mike Klein <mtklein@google.com>
Commit-Queue: Brian Osman <brianosman@google.com>
Auto-Submit: Mike Klein <mtklein@google.com>
Reviewed-by: Brian Osman <brianosman@google.com>
2 files changed