cachedmetrics - still used?

[Austin English]

Looking at documentation/PACKAGING, it seems there's quite a bit of
outdated info (hasn't been updated in 2-3 years...). Anywho, I'm
preparing a few updates for it, but wanted to verify that
cachedmetrics is no longer used. There's a few references to it on
AppDB, but only one reference in the code, and a few on wine-devel
(all of which are pretty old). Is it safe to remove this info?

-Austin