[Python-Dev] Revert #12085 fix for __del__ attribute error message

[Stephen J. Turnbull]

MRAB writes:

 > > The word doesn't literally mean the exception itself was unraisable. It
 > > means it was raised, we caught it and we're writing it to stderr because
 > > we *can't raise it again*.

 > Ah, you mean "unreraisable". :-)

+1

Ugly as sin, but satisfies all other criteria (except for Antoine's "easily
understandable" which simply can't be satisfied).