input: Write a function to remove all occurrences of a specified item from a given list. If the item is successfully removed from the list or if the list is empty, return the modified list. If the item is not found in the list, return the original list unchanged.
  assert removeItem([1, 2, 3, 4, 2, 5, 2], 2) == [1, 3, 4, 5]
  assert removeItem([3, 5, 7, 5, 9], 5) == [3, 7, 9]
  assert removeItem([4, 8, 12, 16], 3) == [4, 8, 12, 16]
  assert removeItem([], 1) == []
  assert removeItem([6, 6, 6, 6], 6) == []
output: def removeItem(lst, item):
      return [x for x in lst if x != item]