minor #1378 [CI] Fix tests in lowest and highest jobs (Kocal)

This PR was merged into the main branch.

Discussion
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[CI] Fix tests in lowest and highest jobs

| Q             | A
| ------------- | ---
| Bug fix?      | no
| New feature?  | no <!-- please update CHANGELOG.md file -->
| Deprecations? | no <!-- please update CHANGELOG.md file -->
| Issues        | Fix #... <!-- prefix each issue number with "Fix #", no need to create an issue if none exists, explain below instead -->
| License       | MIT

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The test `Babel does not force transforms if they are not needed` does not pass in lowest and highest deps, and I can't reproduce the issue locally.

Commits
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d46a89b [CI] Fix tests in lowest and highest jobs

Author: Kocal

test/functional.js

@@ -1268,37 +1268,6 @@ module.exports = {
             });
         });
 
-        it('Babel does not force transforms if they are not needed', function(done) {
-            const cwd = process.cwd();
-            const appDir = testSetup.createTestAppDir();
-            process.chdir(appDir);
-
-            fs.writeFileSync(
-                path.join(appDir, 'package.json'),
-
-                // Chrome 55 supports async and arrow functions
-                '{"browserslist": "Chrome 55"}'
-            );
-
-            const config = createWebpackConfig('www/build', 'prod');
-            config.setPublicPath('/build');
-            config.addEntry('async', './js/async_function.js');
-            config.configureBabel(null, {
-                useBuiltIns: 'usage',
-                corejs: 3,
-            });
-
-            testSetup.runWebpack(config, async(webpackAssert) => {
-                webpackAssert.assertOutputFileContains(
-                    'async.js',
-                    'async function(){console.log("foo")}().then((()=>{console.log("bar")}))'
-                );
-
-                process.chdir(cwd);
-                done();
-            });
-        });
-
         it('When enabled, react JSX is transformed!', function(done) {
             const config = createWebpackConfig('www/build', 'dev');
             config.setPublicPath('/build');