A function that removes duplicates from a list. For example, given the list [1, 2, 2, 3, 4, 4, 5], the function should return [1, 2, 3, 4, 5].
A function that removes duplicates from a list. For example, given the list [1, 2, 2, 3, 4, 4, 5], the function should return [1, 2, 3, 4, 5].