Address minor comments

server/http/query/query.go

@@ -196,11 +196,6 @@ func (q *Query) AnnounceRequest() (chihaya.AnnounceRequest, error) {
 		return nil, errors.New("failed to parse parameter: numwant")
 	}
 
-	request["ip"], err = q.Uint64("port")
-	if err != nil {
-		return nil, errors.New("failed to parse parameter: port")
-	}
-
 	request["port"], err = q.Uint64("port")
 	if err != nil {
 		return nil, errors.New("failed to parse parameter: port")

server/http/writer.go

@@ -69,7 +69,6 @@ func (w *writer) writeScrapeResponse(resp *chihaya.ScrapeResponse) error {
 		filesDict[infohash] = bencode.Dict{
 			"complete":   scrape.Complete,
 			"incomplete": scrape.Incomplete,
-			"downloaded": scrape.Downloaded,
 		}
 	}