Revert "add std.debug.todo"

This reverts commit 80ac022c4667e1995ccdf70fff90e5af26b6eb97.

I changed my mind on this one, sorry. I don't think this belongs in the
standard library.
0f00766661Andrew Kelley committed on 10/21/2022, 1:34:40 AMparent5b9c8d1
1 file changedLine totals unavailable