Merge pull request #5866 from medyagh/gomod2

go mod tidy

go.mod

@@ -21,14 +21,11 @@ require (
 	github.com/docker/machine v0.7.1-0.20190718054102-a555e4f7a8f5 // version is 0.7.1 to pin to a555e4f7a8f5
 	github.com/elazarl/goproxy v0.0.0-20190421051319-9d40249d3c2f
 	github.com/elazarl/goproxy/ext v0.0.0-20190421051319-9d40249d3c2f // indirect
-	github.com/ghodss/yaml v1.0.0 // indirect
 	github.com/go-ole/go-ole v1.2.4 // indirect
 	github.com/golang-collections/collections v0.0.0-20130729185459-604e922904d3
 	github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b
-	github.com/google/btree v1.0.0 // indirect
 	github.com/google/go-cmp v0.3.0
 	github.com/gorilla/mux v1.7.1 // indirect
-	github.com/grpc-ecosystem/grpc-gateway v1.5.0 // indirect
 	github.com/hashicorp/errwrap v0.0.0-20141028054710-7554cd9344ce // indirect
 	github.com/hashicorp/go-getter v1.4.0
 	github.com/hashicorp/go-multierror v0.0.0-20160811015721-8c5f0ad93604 // indirect