Include wx/intl.h according to precompiled headers of wx/wx.h (with other minor cleaning).

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@38909 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/gtk/filedlg.cpp

@@ -14,6 +14,10 @@
 
 #include "wx/filedlg.h"
 
+#ifndef WX_PRECOMP
+    #include "wx/intl.h"
+#endif
+
 #ifdef __WXGTK24__
 
 #include <gtk/gtk.h>
@@ -21,7 +25,6 @@
 
 #include <unistd.h> // chdir
 
-#include "wx/intl.h"
 #include "wx/filename.h" // wxFilename
 #include "wx/tokenzr.h" // wxStringTokenizer
 #include "wx/filefn.h" // ::wxGetCwd