My app got rejected for the following reason but I\'m not using the advertising identifier. Used the following command
find . | grep -v .svn | grep \"\\.a\"
The latest Google Analytics version 3.03c addresses this issue by removing the need to link to the AdSupport.framework
Google AdMob library also uses the advertisingIdentifier and its weird that Apple rejected my app for same reason, though my app is showing advertise.
It rejection reason makes sense. Some libraries using advertisingIdentifier inappropriately instead of recommended ways of device identification like identifierForVendor. Not sure that newest google analytics use recommended way of identification. Try to update to latest version. In other case you will need to select some other analytics solution for tracking, for example Mixpanel had this issue resolved and works well.
I have the same rejection and found out that my case GoogleConversionTrackingSDK is the library that uses the advertisingIdentifier inappropriately.