unmap the "libchromeos-rs" repo

This repo seems to be unused and depends on internals of the
"external/crosvm" project that have become incompatible.

Bug: 269356487
Test: m
Change-Id: Id291693cd72dba9dda0ec6d6af499fcb286e40b4
1 file changed
tree: 1f7bb628e77724f921340103c2fd9e35dd9dfeb8
  1. default.xml
  2. GLOBAL-PREUPLOAD.cfg
  3. OWNERS