No real changes, just remove an unused line from wxOSX wxListBox code.

Don't create a wxEVT_LISTBOX event unnecessarily, this is done by the helper
HandleLineEvent() function called from here.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_3_0_BRANCH@75151 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/osx/cocoa/listbox.mm

@@ -302,8 +302,6 @@ protected:
         wxListBox *list = static_cast<wxListBox*> ( impl->GetWXPeer());
         wxCHECK_RET( list != NULL , wxT("Listbox expected"));
         
-        wxCommandEvent event( wxEVT_LISTBOX, list->GetId() );
-        
         if ((row < 0) || (row > (int) list->GetCount()))  // OS X can select an item below the last item
             return;