chore: remove unused testProtocols

We no longer need this now that we explicitly support v1 compatibility mode.

Author: Stebalien

dht.go

@@ -223,13 +223,7 @@ func makeDHT(ctx context.Context, h host.Host, cfg config) (*IpfsDHT, error) {
 	var protocols, serverProtocols []protocol.ID
 
 	// check if custom test protocols were set
-	if len(cfg.testProtocols) > 0 {
-		protocols = make([]protocol.ID, len(cfg.testProtocols))
-		for i, p := range cfg.testProtocols {
-			protocols[i] = cfg.protocolPrefix + p
-		}
-		serverProtocols = protocols
-	} else if cfg.v1CompatibleMode {
+	if cfg.v1CompatibleMode {
 		// In compat mode, query/serve using the old protocol.
 		//
 		// DO NOT accept requests on the new protocol. Otherwise:

dht_options.go

@@ -50,9 +50,6 @@ type config struct {
 		peerFilter          RouteTableFilterFunc
 	}
 
-	// test parameters
-	testProtocols []protocol.ID
-
 	// set to true if we're operating in v1 dht compatible mode
 	v1CompatibleMode bool
 }
@@ -312,15 +309,6 @@ func RoutingTableFilter(filter RouteTableFilterFunc) Option {
 	}
 }
 
-// customProtocols is only to be used for testing. It sets the protocols that the DHT listens on and queries with to be
-// the ones passed in. The custom protocols are still augmented by the Prefix.
-func customProtocols(protos ...protocol.ID) Option {
-	return func(c *config) error {
-		c.testProtocols = protos
-		return nil
-	}
-}
-
 // V1CompatibleMode sets the DHT to operate in V1 compatible mode. In this mode,
 // the DHT node will act like a V1 DHT node (use the V1 protocol names) but will
 // use the V2 query and routing table logic.