This PR removes a set that was created and [initially used](1d2a0040cf (diff-0bc92da3d703202f5b9be2d3f845e375f5b1a6bc6ba61705a8af9be1121f5e42R435-R436)), but is no longer today. May help cut down a bit on the time it takes to accept invites.
1d2a0040cf (diff-0bc92da3d703202f5b9be2d3f845e375f5b1a6bc6ba61705a8af9be1121f5e42R435-R436)