Removed commented lines

lib/associations/has-many-double-linked.js

@@ -66,14 +66,12 @@ module.exports = (function() {
       // Return only those old associations that are not found in new
       return !Utils._.find(newAssociations, function (obj) {
         return ((targetKeys.length === 1) ? obj[targetKeys[0]] === old[targetKeys[0]] : obj.id === old.id)
-        //return (!!obj[foreignIdentifier] && !!old[foreignIdentifier] ? obj[foreignIdentifier] === old[foreignIdentifier] : obj.id === old.id)
       })
     })
 
     var unassociatedObjects = newAssociations.filter(function (obj) {
       return !Utils._.find(oldAssociations, function (old) {
         return ((targetKeys.length === 1) ? obj[targetKeys[0]] === old[targetKeys[0]] : obj.id === old.id)
-        //return (!!obj[foreignIdentifier] && !!old[foreignIdentifier] ? obj[foreignIdentifier] === old[foreignIdentifier] : obj.id === old.id)
       })
     })