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

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39634 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

src/common/object.cpp

@@ -20,14 +20,11 @@
 #ifndef WX_PRECOMP
     #include "wx/object.h"
     #include "wx/hash.h"
+    #include "wx/memory.h"
 #endif
 
 #include <string.h>
 
-#if (defined(__WXDEBUG__) && wxUSE_MEMORY_TRACING) || wxUSE_DEBUG_CONTEXT
-#include "wx/memory.h"
-#endif
-
 #if defined(__WXDEBUG__) || wxUSE_DEBUG_CONTEXT
     #if defined(__VISAGECPP__)
         #define DEBUG_PRINTF(NAME) { static int raz=0; \