input: Write a function to remove a specific element from a list.
  assert remove_element([5, 7, 6, 1, 3], 3) == [5, 7, 6, 1]
  assert remove_element([2, 4, 6, 8, 10], 6) == [2, 4, 8, 10]
  assert remove_element([1, 2, 2, 3], 2) == [1, 2, 3]
output: def remove_element(lst, element):
      return [x for x in lst if x != element]