feat: remove @angular/http (#27038)

The legacy HTTP package was deprecated in v5 with the launch of
@angular/common/http. The legacy package hasn't been published
since v7, and will therefore not include a migration.

PR Close #27038

integration/angular_integration_test.bzl

@@ -44,7 +44,6 @@ GENERATED_NPM_PACKAGES = [
     "@angular/core",
     "@angular/elements",
     "@angular/forms",
-    "@angular/http",
     "@angular/language-service",
     "@angular/localize",
     "@angular/platform-browser",