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.
[91, -12.975, -2, -10.99, 3.847, -9.658, 83.593, 59.101, 30, 56]