Function parameters don't need WINE_UNUSED.

dlls/msvcrt/except.c

@@ -84,7 +84,7 @@ inline static DWORD call_filter( void *func, void *arg, void *ebp )
 
 static DWORD MSVCRT_nested_handler(PEXCEPTION_RECORD rec,
                                    EXCEPTION_REGISTRATION_RECORD* frame,
-                                   PCONTEXT context WINE_UNUSED,
+                                   PCONTEXT context,
                                    EXCEPTION_REGISTRATION_RECORD** dispatch)
 {
   if (rec->ExceptionFlags & 0x6)

dlls/msvcrt/locale.c

@@ -129,8 +129,7 @@ static int compare_info(LCID lcid, DWORD flags, char* buff, const char* cmp)
 }
 
 static BOOL CALLBACK
-find_best_locale_proc(HMODULE hModule WINE_UNUSED, LPCSTR type WINE_UNUSED,
-                      LPCSTR name WINE_UNUSED, WORD LangID, LONG lParam)
+find_best_locale_proc(HMODULE hModule, LPCSTR type, LPCSTR name, WORD LangID, LONG lParam)
 {
   locale_search_t *res = (locale_search_t *)lParam;
   const LCID lcid = MAKELCID(LangID, SORT_DEFAULT);

dlls/winmm/mmsystem.c

@@ -1839,7 +1839,7 @@ void	mmTaskEntryPoint16(LPSTR cmdLine, WORD di, WORD si)
 /**************************************************************************
  * 				mmTaskBlock		[MMSYSTEM.902]
  */
-void	WINAPI	mmTaskBlock16(HINSTANCE16 WINE_UNUSED hInst)
+void WINAPI mmTaskBlock16(HINSTANCE16 hInst)
 {
     MSG		msg;