Remove all presubmits and presubmit tests

Bug:1401824
Change-Id: I6869b8eb4c921b8bca8bf2be1b352a89d6b74a79
94 files changed
tree: 60b5f3eee4d3c82666ddf048056d6831c39c1ade
  1. chroot/
  2. src/
  3. DIR_METADATA
  4. OWNERS