SEP 12.1 RU3 - SONAR not installed but reporting in the SEPM console

Hello,

We have started upgrade of SEP on servers from version 11 to 12.1 RU3. These are Citrix servers so we are installing only "Antivirus and Antispyware Protection" without any otgher features (no SONAR, IPS etc).

After the upgrade when I check the server in SEPM, it shows also SONAR definitions. Why is this so, when we don't have SONAR installed?

Thanks