freezeChen

#### What happened: #1935 #1942 在上诉issue中,在discovery中新增了DisableDebugLog()对日志输入进行关闭,但discovery.NewBuilder()是在grpc client创建的内部中调用的 ` if options.discovery != nil { grpcOpts = append(grpcOpts, grpc.WithResolvers( discovery.NewBuilder( options.discovery, discovery.WithInsecure(insecure), ))) }` 无法直接在外部对日志进行关闭, 提议在 grpc.DialInsecure()中增加关闭discovery日志的options #### What you expected to...