[Breaking] Remove deprecated sync access to Dynamic APIs (#84179)
This PR removes the deprecated sync access to Dynamic APIs.
- Removed UnsafeUnwrapped* types.
- Replaced `as unknown as UnsafeUnwrapped ` type casts to `as any` for
dev warning.
- Removed tests that expected sync access to not error.
- Removed `UntrackedExotic` functions.
- Modified tests that were accidentally doing sync access.
- Updated warnings to emphasize that it is a Promise and must be
awaited.
- Removed paragraph that states access is allowed from
`errors/sync-dynamic-apis.mdx`.
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Co-authored-by: Josh Story <story@hey.com>