Definition: 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.
Input: [18.193, -10.956, -3.459, 81, 4.992, 40.739, 4.377, -53.931, -90, 30, -1]

[81, -90, 30, -1]