build: remove legacy integration test runner (#35985)

* integration tests target definitions in integration/BUILD.bazel updated to use a single dict
* payload tracking for integration tests updated to work under Bazel
* legacy integration_test CI job removed
* integration/run_tests.sh script no longer used in CI so it has been updated for running integration tests locally in the legacy way

PR Close #35985

integration/hello_world__closure/package.json

@@ -30,6 +30,7 @@
   },
   "scripts": {
     "closure": "java -jar node_modules/google-closure-compiler/compiler.jar --flagfile closure.conf",
+    "build": "cd .",
     "test": "ngc && yarn run closure && concurrently \"yarn run serve\" \"yarn run protractor\" --kill-others --success first",
     "serve": "lite-server -c e2e/browser.config.json",
     "preprotractor": "tsc -p e2e",