remove AnnTorrentsToDht opt

have issues on disable

server/settings/btsets.go

@@ -29,7 +29,6 @@ type BTSets struct {
 
 	// BT Config
 	AcceptPeerCon     bool `default:"true"`
-	AnnTorrentsToDht  bool `default:"true"`
 	EnableIPv6        bool
 	DisableTCP        bool
 	DisableUTP        bool
@@ -122,7 +121,6 @@ func loadBTSets() {
 func SetDefault() {
 	sets := new(BTSets)
 	sets.AcceptPeerCon = true
-	sets.AnnTorrentsToDht = true
 	sets.EnableDebug = false
 	sets.DisableUTP = true
 	sets.CacheSize = 96 * 1024 * 1024 // 96 MB