Remove two unused structs

elastic/elastic.go

@@ -23,28 +23,3 @@ func ReadConfig(r io.Reader) (*Config, error) {
 	return &out, nil
 }
-
-type ReaderAsJSONString struct {
-	io.Reader
-}
-
-func (r *ReaderAsJSONString) MarshalJSON() ([]byte, error) {
-	/* TODO: fewer copies
-	out := bytes.NewBuffer(nil)
-	err := out.WriteByte('"')
-	_, err = io.Copy(out, r.Reader) // FIXME: convert to valid JSON string data, escape quote marks
-	err = out.WriteByte('"')
-	return out.Bytes(), err
-	*/
-
-	data, err := ioutil.ReadAll(r.Reader)
-	if err != nil {
-		return nil, err
-	}
-
-	return json.Marshal(string(data))
-}
-
-type Req struct {
-	Blob *ReaderAsJSONString `json:"blob"`
-}