refactor: remove unwanted commented lines

test/table.ts

@@ -216,19 +216,11 @@
 
   describe('delete', () => {
     it('should update the schema on the database for GoogleSQL using await', async () => {
-      // sandbox
-      //   .stub(table.database, 'getDatabaseDialect')
-      //   .resolves('GOOGLE_STANDARD_SQL');
-      // const stub = sandbox.stub(table.database, 'updateSchema').resolves();
-      // await table.delete();
-      // sinon.assert.calledOnce(stub);
-      // assert.strictEqual(stub.args[0][0], 'DROP TABLE `table-name`');
-
       table.database = {
         getDatabaseDialect: gaxOptions => {
           return 'GOOGLE_STANDARD_SQL';
         },
         updateSchema: (schema, gaxOptions, callback_) => {
           assert.strictEqual(schema, 'DROP TABLE `table-name`');
         },
       };
@@ -239,7 +231,7 @@
     it('should update the schema on the database for GoogleSQL using callbacks', () => {
       function callback() {}
       table.database = {
         getDatabaseDialect: (gaxOptions) => {
           return 'GOOGLE_STANDARD_SQL';
         },
         updateSchema: (schema, gaxOptions, callback_) => {
@@ -251,16 +243,6 @@
     });
 
     it('should update the schema on the database for GoogleSQL with schema in the table name using await', async () => {
-      // sandbox
-      //   .stub(tableWithSchema.database, 'getDatabaseDialect')
-      //   .resolves('GOOGLE_STANDARD_SQL');
-      // const stub = sandbox
-      //   .stub(tableWithSchema.database, 'updateSchema')
-      //   .resolves();
-
-      // await table.delete();
-      // sinon.assert.calledOnce(stub);
-      // assert.strictEqual(stub.args[0][0], 'DROP TABLE `table-name`');
       tableWithSchema.database = {
         getDatabaseDialect: gaxOptions => {
           return 'GOOGLE_STANDARD_SQL';
@@ -276,7 +258,7 @@
     it('should update the schema on the database for GoogleSQL with schema in the table name using callbacks', () => {
       function callback() {}
       tableWithSchema.database = {
         getDatabaseDialect: (gaxOptions) => {
           return 'GOOGLE_STANDARD_SQL';
         },
         updateSchema: (schema, gaxOptions, callback_) => {
@@ -287,7 +269,7 @@
       tableWithSchema.delete(callback);
     });
 
     it('should update the schema on the database for PostgresSQL using await', async () => {
 
       table.database = {
         getDatabaseDialect: gaxOptions => {
@@ -317,7 +299,7 @@
       table.delete(callback);
     });
 
     it('should update the schema on the database for PostgresSQL with schema in the table name using await', async () => {
 
       tableWithSchema.database = {
         getDatabaseDialect: gaxOptions => {