Add option to delete packages

[alichraghi]

i really need this option to delete my cringe pacakges

[nektro]

this was intentionally not implemented early on to prevent situations like https://qz.com/646467/how-one-programmer-broke-the-internet-by-deleting-a-tiny-piece-of-code/

the policy on deleting packages is still an active area of development as this project progresses

[LewisGaul]

Some interesting discussion around whether to allow this for PyPI at https://discuss.python.org/t/stop-allowing-deleting-things-from-pypi/17227/59

[nektro]

wonderful link :) i think once a few things happen:

• tarball backups are reenabled on aquila
• zigmod/zig gains the ability to fallback to the registry tarball in the case where a git repo/project is removed

then something akin to cargo yank is a really nice middleground. it allows people to delete things for anyone else coming along but maintains the build-ablilty of existing projects