Removed wxPropertyGridEvent::HasProperty() (use GetProperty() != NULL instead)

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@55950 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

include/wx/propgrid/propgrid.h

@@ -2006,9 +2006,6 @@ public:
         return *m_validationInfo;
     }
 
-    /** Returns true if event has associated property. */
-    bool HasProperty() const { return ( m_property != (wxPGProperty*) NULL ); }
-
     /** Returns true if you can veto the action that the event is signaling.
     */
     bool CanVeto() const { return m_canVeto; }