don't check for monocle layout in zoom() exit condition

dwm.c

@@ -2034,7 +2034,6 @@ zoom(const Arg *arg) {
 	Client *c = selmon->sel;
 
 	if(!selmon->lt[selmon->sellt]->arrange
-	|| selmon->lt[selmon->sellt]->arrange == monocle
 	|| (selmon->sel && selmon->sel->isfloating))
 		return;
 	if(c == nexttiled(selmon->clients))