Remove error from return value of NewContentHandler

contenthandler.go

@@ -17,13 +17,13 @@ type ContentHandler struct {
 }
 
 // NewContentHandler creates a new content handler.
-func NewContentHandler(s Server) (*ContentHandler, error) {
+func NewContentHandler(s Server) *ContentHandler {
 	ch := &ContentHandler{
 		s:  s,
 		bl: NewBlobList(),
 	}
 
-	return ch, nil
+	return ch
 }
 
 // LoadSnapshot adds all blobs from a snapshot into the content handler and returns the snapshot.