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