TrafficControllerTest - trivial simplification am: 0dfbdf36cd am: 1ed9fc9266

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/18695354

Change-Id: I5038a1163a7f6376bb42930b40149e255019a3c8
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>