fix: fix flaky test cases of passive events

[JiaLiPassion]

PR Checklist

Please check if your PR fulfills the following requirements:

• The commit message follows our guidelines: https://github.com/angular/angular/blob/master/CONTRIBUTING.md#commit
• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)

PR Type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update (formatting, local variables)
• Refactoring (no functional changes, no api changes)
• Build related changes
• CI related changes
• Documentation content changes
• angular.io application / infrastructure changes
• Other... Please describe:

What is the current behavior?

The test case will random failed like this, https://circleci.com/gh/angular/angular/634629?utm_campaign=workflow-failed&utm_medium=email&utm_source=notification, the reason is the eventListeners are not cleared, and jasmine now run test cases in random orders, so some time, the eventListener of other test cases will be triggered.

What is the new behavior?

clear all event listeners when running cases.

Does this PR introduce a breaking change?

• Yes
• No

Other information

[matsko]

@JiaLiPassion this doesn't merge onto the patch branch properly. I changed it so that it only gets applied to the master branch. Could you create another PR that only applies it patch?

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