chore: remove unused dependencies

Author: akshatagarwl

Diff for: package.json

@@ -11,18 +11,14 @@
     "@fortawesome/fontawesome-svg-core": "^1.2.25",
     "@fortawesome/free-solid-svg-icons": "^5.11.2",
     "@fortawesome/react-fontawesome": "^0.1.8",
-    "@octokit/rest": "^16.35.0",
     "babel-plugin-styled-components": "^1.10.6",
     "gatsby": "^2.18.10",
     "gatsby-plugin-react-helmet": "^3.1.18",
     "gatsby-plugin-styled-components": "^3.1.16",
     "react": "^16.12.0",
-    "react-dev-utils": "^11.0.4",
     "react-dom": "^16.12.0",
     "react-helmet": "^5.2.1",
     "styled-components": "^4.4.1"
   },
-  "devDependencies": {
-    "@fortawesome/fontawesome-free": "^5.11.2"
-  }
+  "devDependencies": {}
 }