sctp: remove a redundant NULL check

It confuses Smatch when we check "sinit" for NULL and then non-NULL and
that causes a false positive warning later.

Signed-off-by: Dan Carpenter <[email protected]>
Acked-by: Neil Horman <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: Dan Carpenter

net/sctp/socket.c

@@ -1743,7 +1743,7 @@ static int sctp_sendmsg(struct kiocb *iocb, struct sock *sk,
 		 * either the default or the user specified stream counts.
 		 */
 		if (sinfo) {
-			if (!sinit || (sinit && !sinit->sinit_num_ostreams)) {
+			if (!sinit || !sinit->sinit_num_ostreams) {
 				/* Check against the defaults. */
 				if (sinfo->sinfo_stream >=
 				    sp->initmsg.sinit_num_ostreams) {