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.
[-1.298, -0.878, -26.287, 1.602, -18.377, -23.445, -89, -6.926, 2.005]