input: Write a function to remove all occurrences of a specified item from a list and return the updated list. If the list is empty, return the empty list. If the item to remove 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([1, 2, 3, 4, 5], 6) == [1, 2, 3, 4, 5]
  assert removeItem([5, 5, 5], 5) == []
  assert removeItem([], 3) == []
output: def removeItem(lst, item):
      return [x for x in lst if x != item]