Revert "Use stop-app command to kill app"

This reverts commit 5ff4b589e2e42cc869e0a4385b6fce0df504f5ff.

Reason for revert: Potential culprit for b/321113077 - verifying through ABTD before revert submission. This is part of the standard investigation process, and does not mean your CL will be reverted.

Change-Id: Ie4a336e6749db4909628f22110741afbed3e3560
1 file changed