Authentication user plugins causes redundant Artifactory <> Access calls

The authentication plugin groovy hook in Artifactory causes redundant calls for Artifactory's Access client.

The Access client in its turn, issues PATCH request the Access server which for every authenticated Artifactory request. An example for this is the `synchronizeLdapGroups ` plugin which can cause a transport the API key (basictoken) to Access as a user property (custom_data in Access) to get registered in the Access's relevant database schema.