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

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39285 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/msw/utils.cpp

@@ -29,6 +29,7 @@
     #include "wx/app.h"
     #include "wx/intl.h"
     #include "wx/log.h"
+    #include "wx/timer.h"
 #endif  //WX_PRECOMP
 
 #include "wx/msw/registry.h"
@@ -55,8 +56,6 @@
     #include <winsock.h>
 #endif
 
-#include "wx/timer.h"
-
 #if !defined(__GNUWIN32__) && !defined(__SALFORDC__) && !defined(__WXMICROWIN__) && !defined(__WXWINCE__)
     #include <direct.h>