In this task you will be given a list of numbers. You should remove any number that is not an integer (whole number). If every number is not an whole number then an empty list ("[]") should be returned. Otherwise, answer with the list of whole numbers separated by comma inside brackets.
[-88, -68, 37.071, 81, 4.357, -18.898, 25.629, 5.407, 23.399, -4.57]