Disable advertisingIdentifier to avoid AppStore rejection

gistfile1.m

__attribute__((constructor))
void PIXWhatPartOfAdvertisingTrackingEnabledDidYouNotUnderstand(void) {
    if (![[ASIdentifierManager sharedManager] isAdvertisingTrackingEnabled]) {
        IMP newImplementation = imp_implementationWithBlock(^NSUUID *{
            return nil;
        });
        Method m = class_getInstanceMethod([ASIdentifierManager class], @selector(advertisingIdentifier));
        method_setImplementation(m, newImplementation);
    }
}