Revert^3 "make some apis in DeivceConfig as public"

This reverts commit 41831fe262c101edbf7907e94c020fd0303ca82d.

Reason for revert: Cause some API finalization proplem

Change-Id: I43faa9654978d170cea2516383c502201374ff78
7 files changed
tree: 586e360e43e307011b54d901db74515dde633a74
  1. apex/
  2. framework/
  3. service/
  4. OWNERS
  5. TEST_MAPPING