Revert "Support overriding token in notifify.event service (#47133)"

[balloob]

This reverts commit 056f7d4.

Breaking change

Proposed change

PR #47133 was not tested and did not work.

Fixes #48739
Closes #48928

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• Dependency upgrade
• Bugfix (non-breaking change which fixes an issue)
• New integration (thank you!)
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• Breaking change (fix/feature causing existing functionality to break)
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• This PR fixes or closes issue: fixes #
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[probot-home-assistant]

Hey there @matrozov, @papajojo, mind taking a look at this pull request as its been labeled with an integration (notify_events) you are listed as a codeowner for? Thanks!
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