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.
[-2.294, 63, -9.032, -21.618, -20.075, -78, 13.429, 92, 67.707]