Remove unused function rump_shutdown()

tests/fs/ffs/ffs_common.sh

@@ -1,4 +1,4 @@
-# $NetBSD: ffs_common.sh,v 1.3 2016/10/08 13:23:53 gson Exp $ 
+# $NetBSD: ffs_common.sh,v 1.4 2020/08/17 06:18:39 gson Exp $ 
 
 create_ffs()
 {
@@ -23,17 +23,6 @@ create_ffs_server()
 		${sarg} ${IMG} ${RUMP_SERVER}
 }
 
-rump_shutdown()
-{
-	for s in ${RUMP_SOCKETS_LIST}; do
-		atf_check -s exit:0 env RUMP_SERVER=unix://${s} rump.halt;
-	done
-# check that the quota inode creation didn't corrupt the filesystem
-	atf_check -s exit:0 -o "match:already clean" \
-		-o "match:Phase 6 - Check Quotas" \
-		fsck_ffs -nf -F ${IMG}
-}
-
 # from tests/ipf/h_common.sh via tests/sbin/resize_ffs
 test_case()
 {