Remove Looper and update of mSubId
Bug: 144542981
Test: make RunSettingsRoboTests -j ROBOTEST_FILTER=Enhanced4gBasePreferenceControllerTest
make RunSettingsRoboTests -j ROBOTEST_FILTER=VideoCallingPreferenceControllerTest
make RunSettingsRoboTests -j ROBOTEST_FILTER=WifiCallingPreferenceControllerTest
Change-Id: Ie6ae5b5914322644f2655e585b03a6b685bbc84a