bsc: Avoid duplicate DISC.req in TC_bssmap_clear_does_not_cause_bssmap_reset()

Change-Id: I11b4a1e95dcc522f2a9c14a8b625eab2356a1c18
diff --git a/bsc/BSC_Tests.ttcn b/bsc/BSC_Tests.ttcn
index fc221f2..2477539 100644
--- a/bsc/BSC_Tests.ttcn
+++ b/bsc/BSC_Tests.ttcn
@@ -2114,10 +2114,6 @@
 
 		/* MSC disconnects as instructed. */
 		BSSAP.send(ts_BSSAP_DISC_req(dt.sccp_conn_id, 0));
-
-
-		/* MSC disconnects (RLSD). */
-		BSSAP.send(ts_BSSAP_DISC_req(dt.sccp_conn_id, 0));
 	}
 
 	/* In the buggy behavior, a timeout of 2 seconds happens between above