Revert "Use Hugo mounts for our docs vendor files." (#32210)

* Revert "Adapt to the recent main changes"

This reverts commit 50d8921670.

* Revert "Add Hugo Pipes logic for local and vendored scripts."

This reverts commit 3fcfd606f2.

* Revert "Use Hugo mounts for our docs vendor JS files."

This reverts commit 6b071116f3.

package.json

@@ -56,7 +56,7 @@
     "docs-serve": "hugo server --port 9001 --disableFastRender",
     "docs-serve-only": "npx sirv-cli _gh_pages --port 9001",
     "lockfile-lint": "lockfile-lint --allowed-hosts npm --allowed-schemes https: --empty-hostname false --type npm --path package-lock.json",
-    "update-deps": "ncu -u -x karma-browserstack-launcher,terser && npm update",
+    "update-deps": "ncu -u -x karma-browserstack-launcher,terser && npm update && echo Manually update site/assets/js/vendor",
     "release": "npm-run-all dist release-sri docs-build release-zip*",
     "release-sri": "node build/generate-sri.js",
     "release-version": "node build/change-version.js",
@@ -98,13 +98,10 @@
     "@rollup/plugin-babel": "^5.2.1",
     "@rollup/plugin-commonjs": "^16.0.0",
     "@rollup/plugin-node-resolve": "^10.0.0",
-    "anchor-js": "^4.3.0",
     "autoprefixer": "^10.0.2",
     "bundlewatch": "^0.3.1",
     "clean-css-cli": "^4.3.0",
-    "clipboard": "^2.0.6",
     "cross-env": "^7.0.2",
-    "docsearch.js": "^2.6.3",
     "eslint": "^7.13.0",
     "eslint-config-xo": "^0.33.1",
     "eslint-plugin-import": "^2.22.1",