Remove resuming activity from stopping

A resumed activity was added to stopping activity lists while
making it invisible without having state changes. So, the
activity won't be resumed if it becomes visible again because
the activity is already in the resumed state.

Bug: 160435184
Test: atest ActivityRecordTests
Change-Id: I974df663b7ac2dd8e430b2ac1e228f938ec55404
1 file changed