multi: remove config param AcceptRemoteUniverseProofs

We can remove this parameter and use the macaroon whitelist to control
this behaviour.

config.go

@@ -83,8 +83,6 @@ type Config struct {
 	// connecting to itself as a federation member.
 	RuntimeID int64
 
-	AcceptRemoteUniverseProofs bool
-
 	// TODO(roasbeef): use the Taproot Asset chain param wrapper here?
 	ChainParams chaincfg.Params
 

rpcserver.go

@@ -2921,10 +2921,6 @@ func (r *rpcServer) InsertProof(ctx context.Context,
 		return nil, fmt.Errorf("key cannot be nil")
 	}
 
-	if !r.cfg.AcceptRemoteUniverseProofs {
-		return nil, fmt.Errorf("remote proofs not accepted")
-	}
-
 	universeID, err := unmarshalUniID(req.Key.Id)
 	if err != nil {
 		return nil, err

tapcfg/server.go

@@ -270,12 +270,11 @@ func genServerConfig(cfg *Config, cfgLogger btclog.Logger,
 	})
 
 	return &tap.Config{
-		DebugLevel:                 cfg.DebugLevel,
-		RuntimeID:                  runtimeID,
-		AcceptRemoteUniverseProofs: cfg.Universe.AcceptRemoteProofs,
-		Lnd:                        lndServices,
-		ChainParams:                cfg.ActiveNetParams,
-		ReOrgWatcher:               reOrgWatcher,
+		DebugLevel:   cfg.DebugLevel,
+		RuntimeID:    runtimeID,
+		Lnd:          lndServices,
+		ChainParams:  cfg.ActiveNetParams,
+		ReOrgWatcher: reOrgWatcher,
 		AssetMinter: tapgarden.NewChainPlanter(tapgarden.PlanterConfig{
 			GardenKit: tapgarden.GardenKit{
 				Wallet:      walletAnchor,