Android: Inline AndroidManager::intentName into only user

Using Target is actually not optimal as handle to access that
information (BuildSystem + BuildKey or sth to that effect would
be better), so reduce the visibility of this kind of interface.

Change-Id: I138f156b51795d51d2af49c5119d160663dfc20d
Reviewed-by: Assam Boudjelthia <assam.boudjelthia@qt.io>
Reviewed-by: Alessandro Portale <alessandro.portale@qt.io>

src/plugins/android/androidmanager.h

@@ -78,7 +78,6 @@ public:
                         QString *packageName = nullptr,
                         int *version = nullptr,
                         QString *activityPath = nullptr);
-    static QString intentName(ProjectExplorer::Target *target);
     static QString activityName(ProjectExplorer::Target *target);
 
     static QString deviceSerialNumber(ProjectExplorer::Target *target);