Revert "Remove connectivity dependency on Preconditions"

This reverts commit fa5eacc89f19bf96ed7de600a1a81b90454132f7.

Reason for revert: Build broken: b/182721112

Change-Id: Ibc84ec6d7900fdcf0bc14cd7036f9c08287711db
6 files changed
tree: 9de5cc06a5bfa4797917c67ec9870341482083a0
  1. framework/
  2. service/
  3. OWNERS