Chore: Disable lint-markdown-validator

Disables markdown-link-validator as part of the lint:md step.

Close: #5755

package.json

@@ -58,7 +58,7 @@
     "clean:root": "rimraf dist",
     "lint": "npm-run-all --parallel lint:*",
     "lint:dependencies": "node scripts/lint-dependencies.js",
-    "lint:md": "node scripts/lint-markdown && markdown-link-validator . -i www\\.cloudflare\\.com/learning/dns/what-is-dns/ -i twitter\\.com/jacobrossi/status/591435377291866112 -f igm",
+    "lint:md": "node scripts/lint-markdown",
     "lint:packages": "yarn workspaces run lint",
     "lint:scripts": "eslint scripts release --cache --ext .js,.md,.ts",
     "prebuild": "node scripts/prebuild.js",