test(@angular/cli): remove Safari 15 test

Safari v15 is longer included in the default browserlist configuration of CLI apps.

(cherry picked from commit 59a4b00)

tests/legacy-cli/e2e/tests/misc/safari-15-class-properties.ts

@@ -28,13 +28,6 @@ export default async function () {
  // - static #_ = this.ecmp = bla
  const staticIndicatorRegex = /static\s+(\{|#[_\d]+\s+=)/;
 
- await ng('build', '--configuration=development');
- await expectFileToExist('dist/test-project/main.js');
- const mainContent = await readFile('dist/test-project/main.js');
- // TODO: This default cause can be removed in the future when Safari v15
- // is longer included in the default browserlist configuration of CLI apps.
- assert.doesNotMatch(mainContent, staticIndicatorRegex, unexpectedStaticFieldErrorMessage);
-
  await writeFile('.browserslistrc', 'last 1 chrome version');
  await ng('build', '--configuration=development');
  await expectFileToExist('dist/test-project/main.js');