Remove unused prop-types dependency

prop-types can be removed in favour for typescript types.

Author: Joschua Schneider

package-lock.json

@@ -52,10 +52,7 @@
     "ts-jest": "^26.4.0",
     "typescript": "^4.0.3"
   },
-  "dependencies": {
-    "prop-types": "^15.7.2"
-  },
   "peerDependencies": {
     "react": "^16.13.1"
   }
-}
+}