Re-enable MSVC C4722 diagnostic; NFC (#182845)
From MSDN:
https://learn.microsoft.com/en-us/cpp/error-messages/compiler-warnings/compiler-warning-level-1-c4722?view=msvc-170
> 'function' : destructor never returns, potential memory leak
This diagnostic was disabled in 24fdbe567638d942fff6b1cf3df3cb4f5adf6823
as not having value for us, but enabling the diagnostic triggers no new
warnings, so I believe it's safe for us to re-enable. It may not be the
most valuable diagnostic, but knowing about non-returning destructors is
still good for code health.
