Calendar: Do not show "Map" action if app cannot be resolved

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

In this case, the Calendar needn't to show the "Map" action on the statusbar.

CRs-fixed: 619204

Change-Id: I475a3285b23cfbac3a078fb6e89ca6c46575e9bf
(cherry picked from commit 94223ed)