Remove support for the Windows clipboard

This was just broken and rewriting it is not worth the efford

TODO

@@ -2,7 +2,6 @@ Windows Port TODO
 -----------------
 
 - Check WITH_SYSTEMWIDE
-- Is Sys_GetClipboardData() really usefull?
 - Call Sys_AppActivate() in cl_main.c? (otherwise remove it)
 - Is Sys_GetGameAPI() correct?
 - Add platform defines for Windows in common/ and game/

src/common/header/common.h

@@ -739,7 +739,6 @@ void	Sys_ConsoleOutput (char *string);
 void	Sys_SendKeyEvents (void);
 void	Sys_Error (char *error, ...);
 void	Sys_Quit (void);
-char	*Sys_GetClipboardData( void );
 
 /* CLIENT / SERVER SYSTEMS */
 

src/windows/system.c

@@ -353,32 +353,6 @@ Sys_SendKeyEvents(void)
 	sys_frame_time = timeGetTime();
 }
 
-char *
-Sys_GetClipboardData(void)
-{
-	char *data = NULL;
-	char *cliptext;
-
-	if (OpenClipboard(NULL) != 0)
-	{
-		HANDLE hClipboardData;
-
-		if ((hClipboardData = GetClipboardData(CF_TEXT)) != 0)
-		{
-			if ((cliptext = GlobalLock(hClipboardData)) != 0)
-			{
-				data = malloc(GlobalSize(hClipboardData) + 1);
-				strcpy(data, cliptext);
-				GlobalUnlock(hClipboardData);
-			}
-		}
-
-		CloseClipboard();
-	}
-
-	return data;
-}
-
 /* ================================================================ */
 
 void