fonts/psfonts was created long ago, when fontinst was new, and computers were so slow that running it (let alone preparing to run it) was a serious undertaking.
The metrics created back then, kept on ctan in directories fonts/psfonts/(adobe|xadobe|monotype|xmono), have been extremely useful, over the years. However, they don't match modern ideas about using the commercial fonts they support.
We now have a modern set of metrics, provided and maintained by Walter Schmidt, which substantially replace the old metrics.
Therefore, we have deleted the directories fonts/psfonts/(adobe|xadobe|monotype|xmono)
New directories are:
fonts/psfonts/ly1 metrics for the basic 35 fonts set, using ly1 encoding fonts/psfonts/psnfss-metrics links to metrics for the basic 35 fonts set, using T1/TS1 encodings (and a set of pk files for the same fonts) fonts/psfonts/w-a-schmidt metrics for other commercial fonts
fonts/psfonts/ly1 and fonts/psfonts/psnfss-metrics contain files and links that were previously in fonts/psfonts itself.
Some README files remain to be updated/written, but we believe the changes will make life less confusing for users.
Robin Fairbairns
For the CTAN team