tipc: remove duplicated code in tipc_msg_create

Remove a duplicate code checking for header size in tipc_msg_create() as
it's already being done in tipc_msg_init().

Acked-by: Jon Maloy <[e-mail]>
Signed-off-by: Hoang Huu Le <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Jakub Kicinski <[e-mail]>

net/tipc/msg.c

···
 	msg_set_origport(msg, oport);
 	msg_set_destport(msg, dport);
 	msg_set_errcode(msg, errcode);
-	if (hdr_sz > SHORT_H_SIZE) {
-		msg_set_orignode(msg, onode);
-		msg_set_destnode(msg, dnode);
-	}
 	return buf;
 }