Use only delete icon in auto revoke screen

Do not use the disable icon in the auto revoke screen, only the delete.
Keep the disable dialog the same

Bug: 154355273
Test: Go to auto revoke screen, where a preinstalled app has been unused
for over 30 days. It should have a trash can icon, not a circle with a
diagonal line.

Change-Id: I6c4ae40b005a221e7d9a0ff51663fd54ad52c633