[native] Pull CommunityCreationKeyserverLabel out of CommunityConfiguration
Summary:
noop, just so we can include CommunityCreationKeyserverLabel in CommunityCreationMembers (next diff(s)).
Depends on D7987
Test Plan: Everything looks exactly as before, cut/paste
Reviewers: ashoat, ginsu
Reviewed By: ashoat
Subscribers: ashoat, tomek
Differential Revision: https://phab.comm.dev/D7988