Remove the task of SIM Toolkit when it becomes no longer needed

The problem is that user can re-instantiate the activity which already
sent TERMINAL RESPONSE from the card if user find the task of SIM
Toolkit on the overview screen and select it. The unnecessary task must
be removed from the overview screen and some flags for launching
activity should be removed instead.

Bug: 130844526
Test: Confirmed that the issue was gone and found no degradation issue.

Change-Id: I74b078241b5954f138f509360e6942ca20064d43
2 files changed