Hi,
I see some confusion in this thread about SNAC and HI.
Before RU5, HI was part of SNAC, thus you needed SNAC license to use HI.
Now HI is part of SEP RU5, thus you should not need a SNAC license but the migration kept it.
AFAIK, it should be enough to disable SNAC in the settings of each group so the clients won't ask anymore for the license. You may then delete the SNAC.xml file from %Program Files%\Symantec\Symantec Endpoint Protection Manager\tomcat\etc\license\ but I don't think it is really needed to do it.