Use wpAssertionFailure in TaggedManagedObjectID

[mokagio]

After all, the goal of the code was to log the error, which wpAssertionFailure allows to do.

Removing the app delegate access unblocks moving TaggedManagedObjectID away from the apps targets and into WordPressData.

Alternatively, we could just remove the logging entirely. The original comment did mention monitoring the error for a few releases, but that was some time ago...

Part of #24165.

[dangermattic]

	1 Warning
⚠️	This PR is assigned to the milestone 25.9. The due date for this milestone has already passed. Please assign it to a milestone with a later deadline or check whether the release for this milestone has already been finished.

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	Build Number	26986
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📲 You can test the changes from this Pull Request in Jetpack by scanning the QR code below to install the corresponding build.

	App Name	Jetpack
	Configuration	Release-Alpha
	Build Number	26986
	Version	PR #24376
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