drop azure and gcs support for lite version

try AWS use only

tfstate/lookup.go

@@ -171,18 +171,6 @@ func ReadURL(ctx context.Context, loc string) (*TFState, error) {
 	case "s3":
 		key := strings.TrimPrefix(u.Path, "/")
 		src, err = readS3(ctx, u.Host, key, s3Option{})
-	case "gs":
-		key := strings.TrimPrefix(u.Path, "/")
-		src, err = readGCS(ctx, u.Host, key, "", os.Getenv("GOOGLE_ENCRYPTION_KEY"))
-	case "azurerm":
-		split := strings.SplitN(u.Path, "/", 4)
-
-		if len(split) < 4 {
-			err = fmt.Errorf("invalid azurerm url: %s", u.String())
-			break
-		}
-
-		src, err = readAzureRM(ctx, u.Host, split[1], split[2], split[3], azureRMOption{subscriptionID: u.User.Username()})
 	case "file":
 		src, err = os.Open(u.Path)
 	case "remote":

tfstate/remote.go

@@ -29,10 +29,6 @@ func strpe(v interface{}) *string {
 
 func readRemoteState(ctx context.Context, b *backend, ws string) (io.ReadCloser, error) {
 	switch b.Type {
-	case "gcs":
-		return readGCSState(ctx, b.Config, ws)
-	case "azurerm":
-		return readAzureRMState(ctx, b.Config, ws)
 	case "s3":
 		return readS3State(ctx, b.Config, ws)
 	case "remote":