More improvements to re-INVITEs timing out after a provisional response

There is no need to call check_pendings() on a final response to an INVITE
when destroying the scheduler entry as it will be done later during normal
processing.

(issue ASTERISK-19992)
........

Merged revisions 369579 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 369580 from http://svn.asterisk.org/svn/asterisk/branches/10


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@369581 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -21315,9 +21315,6 @@ static void handle_response_invite(struct sip_pvt *p, int resp, const char *rest
 		p->ongoing_reinvite = 0;
 		if (p->reinviteid > -1) {
 			AST_SCHED_DEL_UNREF(sched, p->reinviteid, dialog_unref(p, "unref dialog for reinvite timeout because of a final response"));
-			/* Since we got a final response to the reinvite, but were relying on the reinvite_timeout
-			 * function to clean up after the reinvite, we need to make sure and call check_pendings */
-			check_pendings(p);
 		}
 	}