fix(bazel): ng build should produce prod bundle (#29136)

`ng build` should produce a bundle that could be readily deployed to
a web server, similar to the behavior of current `ng build` with
webpack.

Note that in Bazel, there is no `ng build` for dev bundles. Instead,
users are expected to run `ts_devserver`.

Closes https://github.com/angular/angular/issues/28877

PR Close #29136

packages/bazel/src/schematics/ng-add/index.ts

@@ -127,14 +127,9 @@ function updateAngularJsonToUseBazelBuilder(options: Schema): Rule {
         recorder, architect, 'build', {
           builder: '@angular/bazel:build',
           options: {
-            targetLabel: '//src:bundle.js',
+            targetLabel: '//src:prodapp',
             bazelCommand: 'build',
-          },
+          }
-          configurations: {
-            production: {
-              targetLabel: '//src:bundle',
-            },
-          },
         },
         indent);
     replacePropertyInAstObject(