build: remove unused angular bazel postinstall patch (#18373)

In the past, when the framework repo updated their `rules_nodejs`
version, a patch on the components was needed in order to make the
`components-repo-unit-tests` job on framework green.

Since this update PR already landed, and we updated to the Angular
version that includes these changes, we can remove the patch.

tools/bazel/postinstall-patches.js

@@ -29,18 +29,6 @@ shelljs.cd(projectDir);
 // Workaround for https://github.com/angular/angular/issues/18810.
 shelljs.exec('ngc -p angular-tsconfig.json');
 
-try {
-  // Temporary patch to make @angular/bazel compatible with rules_nodejs 1.0.0.
-  // This is needed to resolve the dependency sandwich between angular components and
-  // repo framework. It can be removed with a future @angular/bazel update.
-  // try/catch needed for this the material CI tests to work in angular/repo
-  applyPatch(path.join(__dirname, './angular_bazel_rules_nodejs_1.0.0.patch'));
-} catch (_) {}
-
-// Temporary patch for ts-api-guardian to be compatible with rules_nodejs 1.0.0.
-// TODO: a new ts-api-guardian release is needed.
-applyPatch(path.join(__dirname, './ts_api_guardian_rules_nodejs_1.0.0.patch'));
-
 // Workaround for https://github.com/angular/angular/issues/30586. It's not possible to
 // enable tsickle decorator processing without enabling import rewriting to closure.
 // This replacement allows us to enable decorator processing without rewriting imports.