Increase gocyclo complexity to 25 (and remove all but 2 golint directives related to it) (#1783)

roomserver/internal/perform/perform_backfill.go

@@ -381,7 +381,6 @@ func (b *backfillRequester) StateBeforeEvent(ctx context.Context, roomVer gomatr
 // It returns a list of servers which can be queried for backfill requests. These servers
 // will be servers that are in the room already. The entries at the beginning are preferred servers
 // and will be tried first. An empty list will fail the request.
-// nolint:gocyclo
 func (b *backfillRequester) ServersAtEvent(ctx context.Context, roomID, eventID string) []gomatrixserverlib.ServerName {
 	// eventID will be a prev_event ID of a backwards extremity, meaning we will not have a database entry for it. Instead, use
 	// its successor, so look it up.

roomserver/internal/perform/perform_invite.go

@@ -37,7 +37,6 @@ type Inviter struct {
 	Inputer *input.Inputer
 }
 
-// nolint:gocyclo
 func (r *Inviter) PerformInvite(
 	ctx context.Context,
 	req *api.PerformInviteRequest,

roomserver/internal/perform/perform_join.go

@@ -139,7 +139,6 @@ func (r *Joiner) performJoinRoomByAlias(
 }
 
 // TODO: Break this function up a bit
-// nolint:gocyclo
 func (r *Joiner) performJoinRoomByID(
 	ctx context.Context,
 	req *api.PerformJoinRequest,