Auto-update DIRECTORY.md

Author: github-actions

DIRECTORY.md

@@ -211,7 +211,6 @@
  * [Problem008](https://github.com/TheAlgorithms/Javascript/blob/master/Project-Euler/Problem008.js)
  * [Problem009](https://github.com/TheAlgorithms/Javascript/blob/master/Project-Euler/Problem009.js)
  * [Problem010](https://github.com/TheAlgorithms/Javascript/blob/master/Project-Euler/Problem010.js)
- * [Problem013](https://github.com/TheAlgorithms/Javascript/blob/master/Project-Euler/Problem013.js)
  * [Problem014](https://github.com/TheAlgorithms/Javascript/blob/master/Project-Euler/Problem014.js)
  * [Problem015](https://github.com/TheAlgorithms/Javascript/blob/master/Project-Euler/Problem015.js)
  * [Problem016](https://github.com/TheAlgorithms/Javascript/blob/master/Project-Euler/Problem016.js)