remove dead obsolete code

backend/searchiterbase.go

@@ -1,33 +0,0 @@
-package backend
-
-import (
-	"log"
-	"strconv"
-
-	"github.com/dweymouth/go-subsonic/subsonic"
-)
-
-type searchIterBase struct {
-	query        string
-	artistOffset int
-	albumOffset  int
-	songOffset   int
-	s            *subsonic.Client
-}
-
-func (s *searchIterBase) fetchResults() *subsonic.SearchResult3 {
-	searchOpts := map[string]string{
-		"artistOffset": strconv.Itoa(s.artistOffset),
-		"albumOffset":  strconv.Itoa(s.albumOffset),
-		"songOffset":   strconv.Itoa(s.songOffset),
-	}
-	results, err := s.s.Search3(s.query, searchOpts)
-	if err != nil {
-		log.Println(err)
-		results = nil
-	}
-	if results == nil || len(results.Album)+len(results.Artist)+len(results.Song) == 0 {
-		return nil
-	}
-	return results
-}