Revert "test: unskip negative-settimeout.any.js WPT"

This reverts commit 8244e6c35c.

PR-URL: https://github.com/nodejs/node/pull/48182
Reviewed-By: Luigi Pinca <luigipinca@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>

test/wpt/status/html/webappapis/timers.json

@@ -1 +1,5 @@
-{}
+{
+  "negative-settimeout.any.js": {
+    "skip": "unreliable in Node.js; Refs: https://github.com/nodejs/node/issues/37672"
+  }
+}