chore(tests): test TestTLSMultiNodeKillAllAndRecovery now

It is fixed.

tests/functional/multi_node_kill_all_and_recovery_test.go

@@ -80,8 +80,6 @@ func TestMultiNodeKillAllAndRecovery(t *testing.T) {
 // TestTLSMultiNodeKillAllAndRecovery create a five nodes
 // then kill all the nodes and restart
 func TestTLSMultiNodeKillAllAndRecovery(t *testing.T) {
-	t.Skip("awaiting fix")
-
 	procAttr := new(os.ProcAttr)
 	procAttr.Files = []*os.File{nil, os.Stdout, os.Stderr}