remove Client functional option

dht.go

@@ -176,7 +176,7 @@ func NewDHT(ctx context.Context, h host.Host, dstore ds.Batching) *IpfsDHT {
 // requests. If you need a peer to respond to DHT requests, use NewDHT instead.
 // NewDHTClient creates a new DHT object with the given peer as the 'local' host
 func NewDHTClient(ctx context.Context, h host.Host, dstore ds.Batching) *IpfsDHT {
-	dht, err := New(ctx, h, opts.Datastore(dstore), opts.Client(true))
+	dht, err := New(ctx, h, opts.Datastore(dstore), opts.Mode(opts.ModeClient))
 	if err != nil {
 		panic(err)
 	}

opts/options.go

@@ -130,18 +130,6 @@ func Datastore(ds ds.Batching) Option {
 	}
 }
 
-// Client configures whether or not the DHT operates in client-only mode.
-//
-// Defaults to false.
-func Client(only bool) Option {
-	return func(o *Options) error {
-		if only {
-			o.Mode = ModeClient
-		}
-		return nil
-	}
-}
-
 // Mode configures which mode the DHT operates in (Client, Server, Auto).
 //
 // Defaults to ModeAuto.