Remove deprecated symbols sheduled for/after 2.089

[MoonlightSentinel]

No description provided.

[dlang-bot]

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Testing this PR locally

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[MoonlightSentinel]

@thewilsonator Removed the enforceEx change as it requires vibe-d changes and added changelogs

[thewilsonator]

Auto-merge toggled on

[Geod24]

Missing backquote

[MoonlightSentinel]

Whoops => #7291

Is it possible to generate a preview of the entire changelog? (found in README.md)

[wilzbach]

It is also automatically generated on DAutoTest, e.g. http://dtest.dlang.io/artifact/website-08a5fe1c6137cc5879028d65e8b1ee42781468bc-a53a4a2d720fb1bbe0aa8dcd509e9797/web/changelog/pending.html for this PR