MINOR: stream: Use backend stream-interface dst address instead of target_addr

target_addr field in the stream structure is removed. The backend
stream-interface destination address is now used.
diff --git a/src/cli.c b/src/cli.c
index 6a46f13..36d11a4 100644
--- a/src/cli.c
+++ b/src/cli.c
@@ -2572,7 +2572,7 @@
 			s->srv_conn = NULL;
 		}
 
-		sockaddr_free(&s->target_addr);
+		sockaddr_free(&s->si[1].dst);
 
 		s->si[1].state     = s->si[1].prev_state = SI_ST_INI;
 		s->si[1].err_type  = SI_ET_NONE;