refactor: set removal version for `Deno.RequestEvent`, `Deno.HttpConn` and `Deno.serveHttp()` (#22034)

This change:
1. Sets the removal version for `Deno.RequestEvent`, `Deno.HttpConn` and
`Deno.serveHttp()` for Deno v2. I thought it might be worth calling
`warnOnDeprecatedApi()` within `Deno.Request` and `Deno.HttpConn`
methods, but I thought just having it called within `Deno.serveHttp()`
might be sufficient.
2. Removes some possibly unneeded related benchmarks.

Towards #22021

1 files changed, 6 insertions, 1 deletions

diff --git a/runtime/js/40_http.js b/runtime/js/40_http.js
index d38caa55d..fcabf237b 100644
--- a/runtime/js/40_http.js
+++ b/runtime/js/40_http.js
@@ -1,5 +1,5 @@
 // Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
-import { core } from "ext:core/mod.js";
+import { core, internals } from "ext:core/mod.js";
 const {
   op_http_start,
 } = core.ensureFastOps();
@@ -7,6 +7,11 @@ const {
 import { HttpConn } from "ext:deno_http/01_http.js";
 
 function serveHttp(conn) {
+  internals.warnOnDeprecatedApi(
+    "Deno.serveHttp()",
+    new Error().stack,
+    "Use `Deno.serve()` instead.",
+  );
   const rid = op_http_start(conn.rid);
   return new HttpConn(rid, conn.remoteAddr, conn.localAddr);
 }