tests: remove added clientConfig and change how it's passed in

Author: feywind

src/index.ts

@@ -112,11 +112,6 @@ export interface BigtableOptions extends gax.GoogleAuthOptions {
   BigtableTableAdminClient?: gax.ClientOptions;
 
   metricsEnabled?: boolean;
-
-  /**
-   * Internal only.
-   */
-  clientConfig?: gax.ClientConfig;
 }
 
 /**

testproxy/services/create-client.ts

@@ -92,13 +92,15 @@ export const createClient: ClientImplMaker<
         );
       });
     }
-    const bigtable = new Bigtable({
+
+    const options = {
       projectId,
       apiEndpoint,
       authClient,
       appProfileId: appProfileId!,
       clientConfig,
-    });
+    };
+    const bigtable = new Bigtable(options);
     createBigtableClient(bigtable);
     clientMap.set(clientId!, bigtable);
     return {};