minor polish

transport/http2_client.go

@@ -373,8 +373,7 @@ func (t *http2Client) NewStream(ctx context.Context, callHdr *CallHdr) (_ *Strea
 	if callHdr.SendCompress != "" {
 		t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-encoding", Value: callHdr.SendCompress})
 	}
-	dl, ok := ctx.Deadline()
-	if ok {
+	if dl, ok := ctx.Deadline(); ok {
 		// Send out timeout regardless its value. The server can detect timeout context by itself.
 		timeout := dl.Sub(time.Now())
 		t.hEnc.WriteField(hpack.HeaderField{Name: "grpc-timeout", Value: encodeTimeout(timeout)})