systemd packaging: drop two patches

I have been looking through this:

https://gitlab.postmarketos.org/postmarketos/pmaports/-/tree/systemd/systemd/systemd

With my upstream systemd hat on I just wanted to mention two things:

https://gitlab.postmarketos.org/postmarketos/pmaports/-/blob/systemd/systemd/systemd/0011-src-basic-missing.h-check-for-missing-strndupa.patch

You should be able to drop the patch entirely, we don't use strndupa() anymore. (Might need to backport 10d50d9eac0ed94576928a23e3fa525ddc49c2aa from upstream possibly on some not completely recent version, since for a short time it was reintroduced again by accident).

https://gitlab.postmarketos.org/postmarketos/pmaports/-/blob/systemd/systemd/systemd/0016-don-t-pass-AT_SYMLINK_NOFOLLOW-flag-to-faccessat.patch

This one you should just kill too. It's a crazy patch anyway, and all kernels since 2020 have a new syscall that addresses this properly and musl is using this too afaik. Hence the patch can just be dropped.