Fix 6046544: Deleting a photo takes multiple steps and the flow is...

Fix 6046544: Deleting a photo takes multiple steps and the flow is inconsistent with other deleting flows on other core apps

Per request, change the confirm dialog message to "Delete the selected item(s)?"

b: 6046544

Change-Id: I46f7fd42a9f9fbf2399aca78ed9b2e67a15acb65