perf(ext/event): always set timeStamp to 0 (#20191)

```js
Deno.bench(function eventNew() {
  new Event("foo");
});
```

<b>main</b>
```
./target/release/deno bench event_bench.js
cpu: Apple M1 Max
runtime: deno 1.36.1 (aarch64-apple-darwin)

file:///Users/ib/dev/deno/event_bench.js
benchmark      time (avg)        iter/s             (min … max)       p75       p99      p995
--------------------------------------------------------------- -----------------------------
eventNew       36.43 ns/iter  27,451,874.9   (35.15 ns … 46.98 ns)  37.68 ns   40.7 ns  41.69 ns

```

<b>this PR</b>
```
./target/release/deno bench event_bench.js
cpu: Apple M1 Max
runtime: deno 1.36.1 (aarch64-apple-darwin)

file:///Users/ib/dev/deno/event_bench.js
benchmark      time (avg)        iter/s             (min … max)       p75       p99      p995
--------------------------------------------------------------- -----------------------------
eventNew       13.71 ns/iter  72,958,970.0   (12.85 ns … 31.79 ns)  15.11 ns  16.49 ns   17.5 ns

```

Towards #20167

1 files changed, 0 insertions, 2 deletions

diff --git a/ext/websocket/01_websocket.js b/ext/websocket/01_websocket.js
index 71abb0830..bb1624f22 100644
--- a/ext/websocket/01_websocket.js
+++ b/ext/websocket/01_websocket.js
@@ -9,7 +9,6 @@ import * as webidl from "ext:deno_webidl/00_webidl.js";
 import { HTTP_TOKEN_CODE_POINT_RE } from "ext:deno_web/00_infra.js";
 import DOMException from "ext:deno_web/01_dom_exception.js";
 import {
-  _skipInternalInit,
   CloseEvent,
   defineEventHandler,
   dispatch,
@@ -450,7 +449,6 @@ class WebSocket extends EventTarget {
           const event = new MessageEvent("message", {
             data,
             origin: this[_url],
-            [_skipInternalInit]: true,
           });
           setIsTrusted(event, true);
           dispatch(this, event);