input: Write a python function to remove all occurrences of a target value from a list.
  assert remove_target([1, 2, 3, 4, 5], 3) == [1, 2, 4, 5]
  assert remove_target([1, 1, 2, 2, 3, 3], 2) == [1, 1, 3, 3]
  assert remove_target([4, 5, 4, 5, 4], 4) == [5, 5]
output: def remove_target(lst, target):
      return [x for x in lst if x != target]