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

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39085 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/generic/datavgen.cpp

@@ -10,6 +10,10 @@
 // For compilers that support precompilation, includes "wx.h".
 #include "wx/wxprec.h"
 
+#ifdef __BORLANDC__
+    #pragma hdrstop
+#endif
+
 #if wxUSE_DATAVIEWCTRL
 
 #include "wx/dataview.h"
@@ -19,10 +23,10 @@
 #ifndef WX_PRECOMP
     #include "wx/sizer.h"
     #include "wx/log.h"
+    #include "wx/dcclient.h"
 #endif
 
 #include "wx/stockitem.h"
-#include "wx/dcclient.h"
 #include "wx/calctrl.h"
 #include "wx/popupwin.h"
 #include "wx/renderer.h"