input: Write a python function to remove a specific element from a list.
  assert remove_element([1, 2, 3, 4, 5], 4) == [1, 2, 3, 5]
  assert remove_element([10, 20, 30, 40, 50], 20) == [10, 30, 40, 50]
  assert remove_element([7, 8, 9, 10, 11], 9) == [7, 8, 10, 11]
output: def remove_element(lst, element):
      return [x for x in lst if x != element]