fix(v-on): add removing all dom event listeners when vnode destroyed

[zrh122]

Add removing all dom event listeners when vnode destroyed
fixes #10083
fixes #10004

What kind of change does this PR introduce? (check at least one)

• Bugfix
• Feature
• Code style update
• Refactor
• Build-related changes
• Other, please describe:

Does this PR introduce a breaking change? (check one)

• Yes
• No

If yes, please describe the impact and migration path for existing applications:

The PR fulfills these requirements:

• It's submitted to the dev branch for v2.x (or to a previous version branch), not the master branch
• When resolving a specific issue, it's referenced in the PR's title (e.g. fix #xxx[,#xxx], where "xxx" is the issue number)
• All tests are passing: https://github.com/vuejs/vue/blob/dev/.github/CONTRIBUTING.md#development-setup
• New/updated tests are included

If adding a new feature, the PR's description includes:

• A convincing reason for adding this feature (to avoid wasting your time, it's best to open a suggestion issue first and wait for approval before working on it)

Other information:

[clopezcapo]

Do you know if this also happens in the PROD version? As I am not able to filter by "vue" components in Chrome DevTools. I see the same code as the dev version though...

[novakjcn]

Hi all,
I can confirm this fixes the memory leak problem in our app. We have some quite large Vue components so this issue is actually crashing our app after typing inside inputs and reopening some modal windows for example.
Is this planned to be released?
Thanks a lot :)

[momodiy]

I'm sure this is useful

[suneab]

Is this planned for release? We are still patching this in our solution

[aka434112]

@posva, could you please let us know by when this fix would be made available?

[songguangyu]

@posva same facing this problem, when this fix would be made available?

[SijieCai]

I have waited for this pr and patch fix for a long time, could somebody merge or give some explanation if there are other concern or risk for the pending.

[JinPengGeng]

any update for this PR?

[suneab]

Still waiting :)

[ygj6]

Hi @posva, my team also encountered this problem. And I have tested this patch, it works!

[lidaining-web]

When will it be released?

[JhonWeawer]

Can anyone tell me when this fix will be released?and why so long? 🙂

[kdydesign]

Has it been released? 2.6.15 Please let me know the release schedule.

[leealso]

Anything on this one?

[v1talii-dev]

when is the release expected?

[mae-financial-com]

Is this available if we use the ^2.7.0 version or in which version to find this fix?

[boy-liutao]

I would like to know when 2.6.15 will be released

[zongzi531]

Awesome!!! 🚀