Revert "Merge pull request #17 from numtide/dependabot/go_modules/git…

…hub.com/hashicorp/terraform-plugin-sdk-1.16.0"

This reverts commit 5f3beba, reversing
changes made to fac3d11.

go.mod

@@ -16,14 +16,15 @@ require (
 	github.com/docker/go-units v0.4.0 // indirect
 	github.com/gogo/protobuf v1.3.1 // indirect
 	github.com/gorilla/mux v1.7.3 // indirect
-	github.com/hashicorp/terraform-plugin-sdk v1.16.0
+	github.com/hashicorp/terraform-plugin-sdk v1.15.0
 	github.com/morikuni/aec v1.0.0 // indirect
 	github.com/opencontainers/go-digest v1.0.0-rc1 // indirect
 	github.com/opencontainers/image-spec v1.0.1 // indirect
 	github.com/opencontainers/runc v0.1.1 // indirect
 	github.com/pkg/errors v0.9.1
 	github.com/sirupsen/logrus v1.4.2 // indirect
-	golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9
+	golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586
+	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
 	gotest.tools v2.2.0+incompatible // indirect
 )