IOS Native doesn't use any of this
class: ASIdentifierManager selector: advertisingIdentifier framework: AdSupport.framework
Please check if your XCode has AdSupport.framework probably it was added by another plugin.
It can be also added by Unity if you will use NotificationServices class.
The IOS Native plugin use it for push notification but is disabled by default. To make sure the Push notification API is disabled:
1) Open Plugins Settings: Window -> IOS Native -> Edit Settings
2) Make sure that Push Notification API Is disabled