refactor: use existing method

greenmail-core/src/main/java/com/icegreen/greenmail/imap/commands/FetchCommand.java

@@ -239,7 +239,7 @@ private void handleBodyFetch(MimeMessage mimeMessage,
             } else if (content instanceof InputStream) {
                 byte[] bytes = readAllBytes((InputStream) content);
                 bytes = doPartial(partial, bytes, response);
-                addLiteralStream(bytes, response);
+                addLiteral(bytes, response);
             } else {
                 MimeMultipart mp = (MimeMultipart) content;
                 BodyPart part = null;
@@ -320,17 +320,6 @@ private void addLiteral(byte[] bytes, StringBuilder response) {
         }
     }
 
-    private void addLiteralStream(byte[] bytes, StringBuilder response) {
-        response.append('{');
-        response.append(bytes.length);
-        response.append('}');
-        response.append("\r\n");
-
-        for (byte b : bytes) {
-            response.append((char) (b));
-        }
-    }
-
     // TODO should do this at parse time.
     private String[] extractHeaderList(String headerList, int prefixLen) {
         // Remove the trailing and leading ')('