Remove Nth Node

Problem

Given the head of a linked list, remove the nth node from the end of the list and return its head.

Examples

removeNodes([1,2,3,4,5,6,7,8,9,10], 5);
// returns [1,2,3,4,5,7,8,9,10]
// The 5th node from the end is 6

removeNodes([1,2,3,4,5,6], 3);
// returns [1,2,3,5,6]
// The 3rd node from the end is 4