busybox: CONFIG_FEATURE_DI_ENV_HACK: is it still needed?

[Michael Tokarev <mjt@tls.msk.ru>]

Hi!

There's a debian-specific patch in busybox since 2017 which adds ability
to lift variable name filtering rules for d-i.  A comment in there says:

    This is not a long term fix for this problem: a different approach is
    needed to parse the values from the kernel command-line, but we don't
    want to be responsible for holding up the debian-installer alpha
    release any longer than it has already.

Is it still needed in 2024?

Thanks,

/mjt