Fix 3.0 performance regression (CR-7367)

Yannick Lecaillez

25.46.2015 52674c7996797d28e6671590293a44c1e5f93017

 opendj-server-legacy/src/main/java/org/opends/server/extensions/RC4PasswordStorageScheme.java

@@ -168,7 +168,7 @@
        Arrays.fill(plaintextBytes, (byte) 0);
    }

    return ByteString.valueOf(buffer.toString());
    return ByteString.valueOf(buffer);
  }