Drop size arg from newCasemapMap

It's unused.

downstream.go

@@ -348,7 +348,7 @@ func newDownstreamConn(srv *Server, ic ircConn, id uint64) *downstreamConn {
 		nickCM:       "*",
 		username:     "~u",
 		caps:         xirc.NewCapRegistry(),
-		monitored:    newCasemapMap(0),
+		monitored:    newCasemapMap(),
 		registration: new(downstreamRegistration),
 	}
 	dc.monitored.SetCasemapping(casemapASCII)
@@ -2716,7 +2716,7 @@ func (dc *downstreamConn) handleMessageRegistered(ctx context.Context, msg *irc.
 			}
 			uc.updateMonitor()
 		case "C": // clear
-			dc.monitored = newCasemapMap(0)
+			dc.monitored = newCasemapMap()
 			dc.monitored.SetCasemapping(casemapASCII)
 			uc.updateMonitor()
 		case "L": // list

irc.go

@@ -313,9 +313,9 @@ type casemapEntry struct {
 	value       interface{}
 }
 
-func newCasemapMap(size int) casemapMap {
+func newCasemapMap() casemapMap {
 	return casemapMap{
-		innerMap: make(map[string]casemapEntry, size),
+		innerMap: make(map[string]casemapEntry),
 		casemap:  casemapNone,
 	}
 }

upstream.go

@@ -255,7 +255,7 @@ func connectToUpstream(ctx context.Context, network *network) (*upstreamConn, er
 		conn:                  *newConn(network.user.srv, newNetIRCConn(netConn), &options),
 		network:               network,
 		user:                  network.user,
-		channels:              upstreamChannelCasemapMap{newCasemapMap(0)},
+		channels:              upstreamChannelCasemapMap{newCasemapMap()},
 		caps:                  xirc.NewCapRegistry(),
 		batches:               make(map[string]upstreamBatch),
 		serverPrefix:          &irc.Prefix{Name: "*"},
@@ -264,7 +264,7 @@ func connectToUpstream(ctx context.Context, network *network) (*upstreamConn, er
 		availableMemberships:  stdMemberships,
 		isupport:              make(map[string]*string),
 		pendingCmds:           make(map[string][]pendingUpstreamCommand),
-		monitored:             monitorCasemapMap{newCasemapMap(0)},
+		monitored:             monitorCasemapMap{newCasemapMap()},
 	}
 	return uc, nil
 }
@@ -993,7 +993,7 @@ func (uc *upstreamConn) handleMessage(ctx context.Context, msg *irc.Message) err
 		for _, ch := range strings.Split(channels, ",") {
 			if uc.isOurNick(msg.Prefix.Name) {
 				uc.logger.Printf("joined channel %q", ch)
-				members := membershipsCasemapMap{newCasemapMap(0)}
+				members := membershipsCasemapMap{newCasemapMap()}
 				members.casemap = uc.network.casemap
 				uc.channels.SetValue(ch, &upstreamChannel{
 					Name:    ch,

user.go

@@ -81,7 +81,7 @@ type deliveredStore struct {
 }
 
 func newDeliveredStore() deliveredStore {
-	return deliveredStore{deliveredCasemapMap{newCasemapMap(0)}}
+	return deliveredStore{deliveredCasemapMap{newCasemapMap()}}
 }
 
 func (ds deliveredStore) HasTarget(target string) bool {
@@ -141,7 +141,7 @@ type network struct {
 func newNetwork(user *user, record *database.Network, channels []database.Channel) *network {
 	logger := &prefixLogger{user.logger, fmt.Sprintf("network %q: ", record.GetName())}
 
-	m := channelCasemapMap{newCasemapMap(0)}
+	m := channelCasemapMap{newCasemapMap()}
 	for _, ch := range channels {
 		ch := ch
 		m.SetValue(ch.Name, &ch)