replace wx_{const,static,reinterpret}_cast with their standard C++ equivalents

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@56644 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/utilsgtk.cpp

@@ -216,7 +216,7 @@ void GTK_EndProcessDetector(gpointer data, gint source,
                             GdkInputCondition WXUNUSED(condition))
 {
     wxEndProcessData * const
-        proc_data = wx_static_cast(wxEndProcessData *, data);
+        proc_data = static_cast<wxEndProcessData *>(data);
 
     // child exited, end waiting
     close(source);