lib/wine/port.c: remove redunant prototype for wine_call_on_stack()

[Gerald Pfeifer]

We already have this in include/wine/library.h which is directly
#included from port.c.

Gerald

ChangeLog:
Remove redunant prototype for wine_call_on_stack().
Index: libs/wine/port.c
===================================================================
RCS file: /home/wine/wine/libs/wine/port.c,v
retrieving revision 1.20
diff -u -3 -p -r1.20 port.c
--- libs/wine/port.c	2 Jun 2008 12:25:49 -0000	1.20
+++ libs/wine/port.c	16 Mar 2009 01:05:58 -0000
@@ -132,7 +132,7 @@ void DECLSPEC_NORETURN wine_switch_to_st
  *
  * Switch to the specified stack to call the function and return.
  */
-int wine_call_on_stack( int (*func)(void *), void *arg, void *stack );
+
 #if defined(__i386__) && defined(__GNUC__)
 __ASM_GLOBAL_FUNC( wine_call_on_stack,
                    "pushl %ebp\n\t"