rspro_client_fsm(): Remove outdated/wrong comment from code

Since Change-Id I55d5d61922053fd94e2b5a8cdf0d799b29feec98,
rspro_dec_msg() is no longer taking ownership of the msgb.

Change-Id: Ic1e9f35a2ae82b28dbb4b2ba850c257fa9629cbf

src/rspro_client_fsm.c

@@ -161,8 +161,6 @@ static int srvc_read_cb(struct ipa_client_conn *conn, struct msgb *msg)
 		switch (he->proto) {
 		case IPAC_PROTO_EXT_RSPRO:
 			LOGPFSM(srvc->fi, "Received RSPRO %s\n", msgb_hexdump(msg));
-			/* respro_dec_msg() takes ownership of the input message buffer in successful
-			 * and unsuccessful cases */
 			pdu = rspro_dec_msg(msg);
 			if (!pdu)
 				break;