Remove consul context adapter for RenewPeriodic

Updated the vendored consul which no longer requires the channel adapter
to convert a `chan stuct{}` to a `<-chan struct{}`.

Call testutil.NewTestServerConfigT with the new signature.

backend/remote-state/consul/backend_test.go

@@ -22,7 +22,7 @@ func newConsulTestServer(t *testing.T) *testutil.TestServer {
 		t.Skip()
 	}
 
-	srv := testutil.NewTestServerConfig(t, func(c *testutil.TestServerConfig) {
+	srv, _ := testutil.NewTestServerConfigT(t, func(c *testutil.TestServerConfig) {
 		c.LogLevel = "warn"
 
 		if !testing.Verbose() {

backend/remote-state/consul/client.go

@@ -367,14 +367,7 @@ func (c *RemoteClient) createSession() (string, error) {
 	log.Println("[INFO] created consul lock session", id)
 
 	// keep the session renewed
-	// we need an adapter to convert the session Done() channel to a
-	// non-directional channel to satisfy the RenewPeriodic signature.
-	done := make(chan struct{})
-	go func() {
-		<-ctx.Done()
-		close(done)
-	}()
-	go session.RenewPeriodic(lockSessionTTL, id, nil, done)
+	go session.RenewPeriodic(lockSessionTTL, id, nil, ctx.Done())
 
 	return id, nil
 }