Remove old API check artifacts, invoke gradle from old make target

Fixes paths in build.gradle so they are relative to the project root,
rather than the current directory.

Bug: 28124434
Change-Id: I8cde9db47d60ec1220d35fce5ef6fd2c6e97b1f8
3 files changed
tree: 62e29f23b55aa47adb92d7a5e149927c9bc24622
  1. support/