refactor(runtime): Use util.nonEnumerable to define console

A comment in `runtime.js` reads that `console` seems to be "the only one
that should be writable and non-enumerable", which explains why it is
declared with `util.writable` but then has its property descriptor's
`enumerable` key changed to false.

But it is not in fact true that `console` is the only global property
for which this holds, and it wasn't even when this behavior was
introduced in denoland#9013. All WebIDL interfaces are also writable and
non-enumerable – the only difference here being that `console` is a
namespace rather than an interface.

Since WebIDL interfaces are defined with `util.nonEnumerable`, and
`console` uses the same descriptor keys, this PR changes the definition
of `console` to use `util.nonEnumerable` as well.

runtime/js/99_main.js

@@ -418,7 +418,7 @@ delete Object.prototype.__proto__;
     btoa: util.writable(base64.btoa),
     clearInterval: util.writable(timers.clearInterval),
     clearTimeout: util.writable(timers.clearTimeout),
-    console: util.writable(
+    console: util.nonEnumerable(
       new Console((msg, level) => core.print(msg, level > 1)),
     ),
     crypto: util.readOnly(crypto.crypto),
@@ -468,11 +468,6 @@ delete Object.prototype.__proto__;
     GPUValidationError: util.nonEnumerable(webgpu.GPUValidationError),
   };
 
-  // The console seems to be the only one that should be writable and non-enumerable
-  // thus we don't have a unique helper for it. If other properties follow the same
-  // structure, it might be worth it to define a helper in `util`
-  windowOrWorkerGlobalScope.console.enumerable = false;
-
   const mainRuntimeGlobalProperties = {
     Location: location.locationConstructorDescriptor,
     location: location.locationDescriptor,