[master] 1867404 Kill stale comment

[Dag Haavi Finstad]

commit 186740452b93861398eb1c5941e3511cd58408d7
Author: Dag Haavi Finstad <daghf at varnish-software.com>
Date:   Mon Jan 22 14:30:46 2018 +0100

    Kill stale comment

diff --git a/bin/varnishd/http2/cache_http2_deliver.c b/bin/varnishd/http2/cache_http2_deliver.c
index fc3eeca..46b0f38 100644
--- a/bin/varnishd/http2/cache_http2_deliver.c
+++ b/bin/varnishd/http2/cache_http2_deliver.c
@@ -251,8 +251,6 @@ h2_deliver(struct req *req, struct boc *boc, int sendbody)
 
 	AZ(req->wrk->v1l);
 
-	/* XXX: Optimize !sendbody case */
-
 	if (sendbody && req->resp_len == 0)
 		sendbody = 0;