Merge "Remove sleep in test app." into udc-dev am: 70411eee am: 5a520cfd am: ba4dd6da

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/services/Telecomm/+/22998119



Change-Id: I47bb0b164f9e68900df9bf7f0a1ade2bc66e77df
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>