Fix -Wunused-variable warnings

This change fixes warnings for unused variables that were
enabled by a recent Clang flag update.

This commit was generated by Gemini.

Bug: 315246135
Test: presubmit
Flag: EXEMPT, code cleanup
Change-Id: Ic2548c8ceaf3cee978a84f46331b420e5edd0fff
2 files changed
tree: 16d67043e7115802dffd10574a77a0abf33a89c2
  1. include/
  2. src/
  3. Android.bp
  4. OWNERS
  5. TEST_MAPPING