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

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39607 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/univ/ctrlrend.cpp

@@ -32,6 +32,7 @@
     #include "wx/scrolbar.h"
     #include "wx/dc.h"
     #include "wx/log.h"
+    #include "wx/gauge.h"
 #endif // WX_PRECOMP
 
 #include "wx/image.h"
@@ -40,10 +41,6 @@
 #include "wx/univ/renderer.h"
 #include "wx/univ/colschem.h"
 
-#if wxUSE_GAUGE
-    #include "wx/gauge.h"
-#endif
-
 // ============================================================================
 // implementation
 // ============================================================================