input: Write a python function to recursively delete all occurrences of an element from a list.
  assert delete_from_list([1, 2, 3, 4, 2, 5, 2], 2)==[1, 3, 4, 5]
  assert delete_from_list([1, 2, 3, 4, 5], 6)==[1, 2, 3, 4, 5]
  assert delete_from_list([1, 2, 2, 2, 2, 2], 2)==[]
output: def delete_from_list(lst, element):
      if not lst:
          return []
      if lst[0] == element:
          return delete_from_list(lst[1:], element)
      else:
          return [lst[0]] + delete_from_list(lst[1:], element)