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.
[1.02, -60, -97, -27.207, -39.721, -45.475, 31.303, 1.278, 30, -23.258, 7.221]