Convert remark configuration to YAML and remove dead URL checking

Author: dshevtsov

.remarkrc.mjs

@@ -0,0 +1,8 @@
+plugins:
+  - remark-heading-id
+  - remark-validate-links
+  - remark-frontmatter
+  - - remark-lint-frontmatter-schema
+    - schemas:
+        ./.github/linters/metadata.schema.yml:
+          - ./src/pages/**/*.md

.remarkrc.yml

@@ -18,7 +18,6 @@
     "remark-frontmatter": "^5.0.0",
     "remark-heading-id": "^1.0.1",
     "remark-lint-frontmatter-schema": "^3.15.4",
-    "remark-lint-no-dead-urls": "^1.1.0",
     "remark-validate-links": "^13.0.1"
   },
   "scripts": {