Update terraform/consul dependency

Updates consul/api to v1.7.0 and consul/sdk to v0.6.0

Fixes TestMain in `backend/remote-state/consul/backend.test` to work with new version of testutil imported from consul/sdk.

backend/remote-state/consul/backend_test.go

@@ -7,7 +7,7 @@ import (
 	"testing"
 	"time"
 
-	"github.com/hashicorp/consul/testutil"
+	"github.com/hashicorp/consul/sdk/testutil"
 	"github.com/hashicorp/terraform/backend"
 )
 
@@ -36,7 +36,8 @@ func TestMain(m *testing.M) {
 }
 
 func newConsulTestServer() (*testutil.TestServer, error) {
-	srv, err := testutil.NewTestServerConfig(func(c *testutil.TestServerConfig) {
+	tb := new(testing.TB)
+	srv, err := testutil.NewTestServerConfigT(*tb, func(c *testutil.TestServerConfig) {
 		c.LogLevel = "warn"
 
 		if !testing.Verbose() {

go.mod

@@ -17,8 +17,6 @@ require (
 	github.com/apparentlymart/go-userdirs v0.0.0-20190512014041-4a23807e62b9
 	github.com/apparentlymart/go-versions v1.0.0
 	github.com/armon/circbuf v0.0.0-20190214190532-5111143e8da2
-	github.com/armon/go-metrics v0.0.0-20180917152333-f0300d1749da // indirect
-	github.com/armon/go-radix v1.0.0 // indirect
 	github.com/aws/aws-sdk-go v1.31.9
 	github.com/baiyubin/aliyun-sts-go-sdk v0.0.0-20180326062324-cfa1a18b161f // indirect
 	github.com/bgentry/speakeasy v0.1.0
@@ -51,27 +49,24 @@ require (
 	github.com/grpc-ecosystem/go-grpc-prometheus v1.2.0 // indirect
 	github.com/grpc-ecosystem/grpc-gateway v1.8.5 // indirect
 	github.com/hashicorp/aws-sdk-go-base v0.6.0
-	github.com/hashicorp/consul v0.0.0-20171026175957-610f3c86a089
+	github.com/hashicorp/consul/api v1.7.0
+	github.com/hashicorp/consul/sdk v0.6.0
 	github.com/hashicorp/errwrap v1.0.0
 	github.com/hashicorp/go-azure-helpers v0.12.0
 	github.com/hashicorp/go-checkpoint v0.5.0
 	github.com/hashicorp/go-cleanhttp v0.5.1
 	github.com/hashicorp/go-getter v1.4.2-0.20200106182914-9813cbd4eb02
 	github.com/hashicorp/go-hclog v0.14.1
-	github.com/hashicorp/go-immutable-radix v0.0.0-20180129170900-7f3cd4390caa // indirect
 	github.com/hashicorp/go-msgpack v0.5.4 // indirect
 	github.com/hashicorp/go-multierror v1.1.0
 	github.com/hashicorp/go-plugin v1.3.0
 	github.com/hashicorp/go-retryablehttp v0.5.2
 	github.com/hashicorp/go-rootcerts v1.0.2
-	github.com/hashicorp/go-sockaddr v0.0.0-20180320115054-6d291a969b86 // indirect
 	github.com/hashicorp/go-tfe v0.8.1
 	github.com/hashicorp/go-uuid v1.0.1
 	github.com/hashicorp/go-version v1.2.0
 	github.com/hashicorp/hcl v0.0.0-20170504190234-a4b07c25de5f
 	github.com/hashicorp/hcl/v2 v2.6.0
-	github.com/hashicorp/memberlist v0.1.0 // indirect
-	github.com/hashicorp/serf v0.0.0-20160124182025-e4ec8cc423bb // indirect
 	github.com/hashicorp/terraform-config-inspect v0.0.0-20191212124732-c6ae6269b9d7
 	github.com/hashicorp/terraform-svchost v0.0.0-20191011084731-65d371908596
 	github.com/hashicorp/vault v0.10.4
@@ -91,7 +86,6 @@ require (
 	github.com/mattn/go-colorable v0.1.7
 	github.com/mattn/go-isatty v0.0.12
 	github.com/mattn/go-shellwords v1.0.4
-	github.com/miekg/dns v1.0.8 // indirect
 	github.com/mitchellh/cli v1.1.0
 	github.com/mitchellh/colorstring v0.0.0-20190213212951-d06e56a500db
 	github.com/mitchellh/copystructure v1.0.0
@@ -105,12 +99,10 @@ require (
 	github.com/mitchellh/reflectwalk v1.0.1
 	github.com/nu7hatch/gouuid v0.0.0-20131221200532-179d4d0c4d8d // indirect
 	github.com/packer-community/winrmcp v0.0.0-20180921211025-c76d91c1e7db
-	github.com/pascaldekloe/goe v0.0.0-20180627143212-57f6aae5913c // indirect
 	github.com/pkg/browser v0.0.0-20180916011732-0a3d74bf9ce4
 	github.com/pkg/errors v0.9.1
 	github.com/posener/complete v1.2.3
 	github.com/prometheus/client_golang v0.9.3-0.20190127221311-3c4408c8b829 // indirect
-	github.com/sean-/seed v0.0.0-20170313163322-e2103e2c3529 // indirect
 	github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d // indirect
 	github.com/smartystreets/goconvey v0.0.0-20180222194500-ef6db91d284a // indirect
 	github.com/soheilhy/cmux v0.1.4 // indirect