test: remove timers test from test-handle-wrap-isrefed.js

Since this doesn't work:
process.binding('timer_wrap');

Author: RaisinTen

test/parallel/test-handle-wrap-isrefed.js

@@ -4,7 +4,6 @@
 const common = require('../common');
 const strictEqual = require('assert').strictEqual;
 const { internalBinding } = require('internal/test/binding');
-const { getActiveResources } = require('async_hooks');
 
 // child_process
 {
@@ -108,25 +107,4 @@ const { kStateSymbol } = require('internal/dgram');
 }
 
 
-// timers
-{
-  const { Timer } = process.binding('timer_wrap');
-  strictEqual(Object.values(getActiveResources()).filter(
-    (handle) => (handle instanceof Timer)).length, 0);
-  const timer = setTimeout(() => {}, 500);
-  const handles = Object.values(getActiveResources()).filter(
-    (handle) => (handle instanceof Timer));
-  strictEqual(handles.length, 1);
-  const handle = handles[0];
-  strictEqual(Object.getPrototypeOf(handle).hasOwnProperty('hasRef'),
-              true, 'timer_wrap: hasRef() missing');
-  strictEqual(handle.hasRef(), true);
-  timer.unref();
-  strictEqual(handle.hasRef(),
-              false, 'timer_wrap: unref() ineffective');
-  timer.ref();
-  strictEqual(handle.hasRef(),
-              true, 'timer_wrap: ref() ineffective');
-}
-
 // See also test/pseudo-tty/test-handle-wrap-isrefed-tty.js