Calendar: Do not show "Map" action if there isn't resolve app.

Sometimes the phone didn't contains the map application, and there isn't
application to resolve the view map action.

So the Calendar needn't to show the "Map" action on the statusbar under
this case.

CRs-fixed: 619204

Change-Id: I475a3285b23cfbac3a078fb6e89ca6c46575e9bf