define wxEventLoopBase::ms_activeLoop in appcmn.cpp instead of doing it in all platform-dependent evtloop.cpp files

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@36845 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk1/evtloop.cpp

@@ -56,8 +56,6 @@ private:
 // wxEventLoop running and exiting
 // ----------------------------------------------------------------------------
 
-wxEventLoop *wxEventLoopBase::ms_activeLoop = NULL;
-
 wxEventLoop::~wxEventLoop()
 {
     wxASSERT_MSG( !m_impl, _T("should have been deleted in Run()") );