Remove redundant dev dependency

package.json

@@ -43,7 +43,6 @@
     "@typescript-eslint/eslint-plugin": "^6.11.0",
     "@typescript-eslint/parser": "^6.11.0",
     "buffer": "^5.5.0||^6.0.0",
-    "concat-md": "^0.5.1",
     "dotenv": "^16.3.1",
     "eslint": "^8.5.0",
     "eslint-plugin-import": "^2.26.0",