Get rid of staging commit

The staging commit is no longer necessary now that we don't use goma.

Test: ./update.sh 8484286
Change-Id: I79657a606fc9a65727206c0f5459de94a5b3afa5
1 file changed
tree: 54150de07e77d7d78ae5c2447c0299b87fd39d33
  1. darwin-arm64/
  2. darwin-x86/
  3. linux-x86/
  4. BUILD.bazel
  5. manifest.xml
  6. update.sh