How to remove an attribute from a response in Freeradius?

Question

RADIUS

Used by freeradius with mysql. When responding, the NAS is given an attribute indicating the pool, this attribute is tied to the group (radgroupreply) that the login belongs to. How to remove the return of a given attribute for a specific user? I tried to add user1, Cisco-AVPair, -=, "ip: addr-pool=pool1" to radreply, I checked - it gives one fig. As a result, both this attribute and the Framed-IP-Address are mixed together.