Update 15-linkedlist.md

Lakshay-Pruthi · web-flow · commit 8cda7333533b · 2022-01-04T20:23:49.000+05:30
Question doesn't refer to Linked list.
diff --git a/assignments/15-linkedlist.md b/assignments/15-linkedlist.md
@@ -10,7 +10,6 @@
 - [Intersection of Two Linked Lists](https://leetcode.com/problems/intersection-of-two-linked-lists/) `leetcode`
 - [Linked List Cycle](https://leetcode.com/problems/linked-list-cycle/) `leetcode` `Samsung`
 - [Remove Duplicates from Sorted List](https://leetcode.com/problems/remove-duplicates-from-sorted-list/)`leetcode`
-- [Find All Numbers Disappeared in an Array](https://leetcode.com/problems/find-all-numbers-disappeared-in-an-array/) `leetcode`
 
 ## Medium
 - [Design Twitter](https://leetcode.com/problems/design-twitter/) `leetcode`
