test: clean up domain-no-error-handler test

Added duration to setTimeout and removed extraneous callback args,
as per Rich Trott's instructions

PR-URL: https://github.com/nodejs/node/pull/10291
Reviewed-By: Italo A. Casas <me@italoacasas.com>
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Santiago Gimeno <santiago.gimeno@gmail.com>

test/parallel/test-domain-no-error-handler-abort-on-uncaught.js

@@ -36,7 +36,7 @@ const tests = [
     d.run(function() {
       setTimeout(function() {
         throw new Error('boom!');
-      });
+      }, 1);
     });
   },
 
@@ -65,7 +65,7 @@ const tests = [
 
     d.run(function() {
       var fs = require('fs');
-      fs.exists('/non/existing/file', function onExists(exists) {
+      fs.exists('/non/existing/file', function onExists() {
         throw new Error('boom!');
       });
     });
@@ -82,7 +82,7 @@ const tests = [
       d2.run(function() {
         setTimeout(function() {
           throw new Error('boom!');
-        });
+        }, 1);
       });
     });
   },
@@ -129,7 +129,7 @@ const tests = [
     d.run(function() {
       d2.run(function() {
         var fs = require('fs');
-        fs.exists('/non/existing/file', function onExists(exists) {
+        fs.exists('/non/existing/file', function onExists() {
           throw new Error('boom!');
         });
       });