Remove a couple of unused arguments where possible, and add /* ARGSUSED */ to

the rest to reduce lint output.

window-clock.c

@@ -82,6 +82,7 @@ window_clock_resize(struct window_pane *wp, u_int sx, u_int sy)
 	window_clock_draw_screen(wp);
 }
 
+/* ARGSUSED */
 void
 window_clock_key(
     struct window_pane *wp, unused struct client *c, unused int key)