Update to latest bazlets on master and use 2.16-SNAPSHOT API

Also remove an unnecessary dependency declaration, which is harmless
in the in-tree build, but causes the standalone build to fail with:

  no such package 'java/com/google/gerrit/server/restapi':
  BUILD file not found on package path

Change-Id: I352ea4c7960e2c9198e0835fe59c54d9a287bcae
2 files changed