Disable noisy gRPC logs

[gyuho]

2017-11-10 18:02:24.981969 I | etcdserver/api/v3rpc: transport: http2Server.HandleStreams failed to read frame: read tcp 127.0.0.1:2391->127.0.0.1:43020: read: connection reset by peer
2017-11-10 18:02:24.982017 I | etcdserver/api/v3rpc: transport: http2Server.HandleStreams failed to read frame: read tcp 127.0.0.1:2397->127.0.0.1:37926: read: connection reset by peer
2017-11-10 18:02:26.985608 I | etcdserver/api/v3rpc: transport: http2Server.HandleStreams failed to read frame: read tcp 127.0.0.1:2391->127.0.0.1:43088: read: connection reset by peer

[khanhtc1202]

Is this closed?