Remove #pragma implementation and #pragma interface lines from 2.4 branch to fix issues with gcc.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@34720 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

demos/forty/pile.cpp

@@ -15,11 +15,6 @@
 //|	The base class for holding piles of playing cards.			|
 //+-------------------------------------------------------------+
 
-#ifdef __GNUG__
-#pragma implementation
-#pragma interface
-#endif
-
 // For compilers that support precompilation, includes "wx/wx.h".
 #include "wx/wxprec.h"
 
@@ -30,9 +25,6 @@
 #ifndef WX_PRECOMP
 #include "wx/wx.h"
 #endif
-#ifdef __GNUG__
-#pragma implementation
-#endif
 
 #include <stdlib.h>
 #include <stdio.h>