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: [-31.174, 9.81, -2, -55.061, -29.297, -7, 15, -43.742]

[-2, -7, 15]