chore: add coder_workspace_owner to TestProviderEmpty, rm unused struct

Author: johnstcn

provider/provider_test.go

@@ -33,6 +33,7 @@ func TestProviderEmpty(t *testing.T) {
 			provider "coder" {}
 			data "coder_provisioner" "me" {}
 			data "coder_workspace" "me" {}
+			data "coder_workspace_owner" "me" {}
 			data "coder_external_auth" "git" {
 				id = "git"
 			}

provider/workspace_owner.go

@@ -11,11 +11,6 @@ import (
 	"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
 )
 
-type Role struct {
-	Name        string `json:"name"`
-	DisplayName string `json:"display-name"`
-}
-
 func workspaceOwnerDataSource() *schema.Resource {
 	return &schema.Resource{
 		Description: "Use this data source to fetch information about the workspace owner.",