assoc_ctrl: remove excess dbg print

src/cntlr_cmdu.c

@@ -941,7 +941,6 @@ struct cmdu_buff *cntlr_gen_client_assoc_ctrl_request(struct controller *c,
 
 	frm = cmdu_alloc_simple(CMDU_CLIENT_ASSOC_CONTROL_REQUEST, &mid);
 	if (!frm) {
-		trace("%s |%d|: cmdu alloc error\n", __func__, __LINE__);
 		dbg("%s: -ENOMEM\n", __func__);
 		return NULL;
 	}