Minor fixes

- Removed unnecessary dependencies in `packages.json`
- Changed returned value to array

Author: karimelazzouni

package.json

@@ -20,6 +20,5 @@
     "eslint-config-airbnb-base": "^13.1.0",
     "eslint-plugin-import": "^2.14.0",
     "jest": "^25.0.0"
-  },
-  "dependencies": {}
+  }
 }

src/_DataStructures_/Trees/BinaryTree/bottom-view-binary-tree/index.js

@@ -35,5 +35,5 @@ module.exports = function bottomView(binaryTree) {
     }
   }
 
-  return hdToNodeValue.values();
+  return Array.from(hdToNodeValue.values());
 };