refactor: Remove `FederationRoomEvents` model (#28488)

apps/meteor/app/federation/server/endpoints/dispatch.js

...teor/app/federation/server/endpoints/requestFromLatest.js

apps/meteor/app/federation/server/functions/dashboard.js

apps/meteor/app/federation/server/hooks/afterAddedToRoom.js

...teor/app/federation/server/hooks/afterCreateDirectRoom.js

apps/meteor/app/federation/server/hooks/afterCreateRoom.js

.../meteor/app/federation/server/hooks/afterDeleteMessage.js

apps/meteor/app/federation/server/hooks/afterLeaveRoom.js

apps/meteor/app/federation/server/hooks/afterMuteUser.js

...meteor/app/federation/server/hooks/afterRemoveFromRoom.js

apps/meteor/app/federation/server/hooks/afterSaveMessage.js

apps/meteor/app/federation/server/hooks/afterSetReaction.js

apps/meteor/app/federation/server/hooks/afterUnmuteUser.js

.../meteor/app/federation/server/hooks/afterUnsetReaction.js

apps/meteor/app/federation/server/hooks/beforeDeleteRoom.js

apps/meteor/app/federation/server/lib/context.ts

...meteor/app/federation/server/methods/loadContextEvents.js

apps/meteor/app/federation/server/methods/testSetup.js

apps/meteor/app/models/server/index.ts

apps/meteor/server/cron/federation.ts