chore(dev): remove obsolete build scripts (#1145)

* remove buildPackages script
* remove scripts used only by buildPackages
* remove unused dev deps
* get rid of duplicate fs-extra by updating it to 9.1

package.json

@@ -6,7 +6,6 @@
     "lint": "eslint . --cache --ignore-path .gitignore",
     "fixlint": "yarn lint -- --fix",
     "prepare": "lerna run --stream prepare",
-    "build:packages": "babel-node ./util/buildPackages.js",
     "build:metadata": "babel-node ./util/buildMetadata.js",
     "build:docs": "remark site/docs/**/*.md -o && yarn build:metadata && babel-node ./util/buildSiteMarkdown.js",
     "build:integration": "cross-env BABEL_ENV=test babel-node ./util/buildFrameworks.js",
@@ -37,13 +36,11 @@
     "cross-env": "^7.0.3",
     "css-color-names": "^1.0.1",
     "diff": "^5.0.0",
-    "dox": "^0.9.0",
     "eslint": "^7.27.0",
     "eslint-plugin-import": "^2.23.3",
     "eslint-plugin-prettier": "^3.4.0",
     "eslint-plugin-react": "^7.23.2",
-    "fs-extra": "^8.0.1",
-    "get-pkg-repo": "^4.1.0",
+    "fs-extra": "^9.1.0",
     "glob": "^7.1.4",
     "got": "^11.8.1",
     "html2plaintext": "^2.1.2",
@@ -66,12 +63,8 @@
     "remark-frontmatter": "^3.0.0",
     "remark-gfm": "^1.0.0",
     "remark-github": "^10.1.0",
-    "remark-heading-gap": "^4.0.0",
     "remark-html": "^13.0.1",
-    "remark-license": "^5.0.1",
-    "remark-toc": "^7.2.0",
     "rimraf": "^3.0.2",
-    "stringify-object": "^3.3.0",
     "toml": "^3.0.0",
     "tomlify-j0.4": "^3.0.0",
     "unist-builder": "^2.0.3",