Harshavardhana 02ad9d6072 Avoid unsolicited response over idle http client (#6562)
Without this PR minio server is writing an erroneous
response to clients on an idle connections which ends
up printing following message

```
Unsolicited response received on idle HTTP channel
```

This PR would avoid sending responses on idle connections
.i.e routine network errors.
2018-10-04 10:13:12 -07:00
..