[Pkg-rust-maintainers] Bug#1118591: RM: rust-rustc-std-workspace-core -- ROM; no longer needed

[Fabian Grünbichler]

Package: ftp.debian.org
Severity: normal
X-Debbugs-Cc: rust-rustc-std-workspace-core at packages.debian.org, debian at fabian.gruenbichler.email
Control: affects -1 + src:rust-rustc-std-workspace-core
User: ftp.debian.org at packages.debian.org
Usertags: remove

this crate was only used upstream as a technical hack for building rustc. rustc
in Debian never used packaged crates anyway, and we've now finally managed to
patch out all rdeps artificially requiring this package so it can be dropped.

I will file identical removals for rust-rustc-std-workspace-core,
rust-rustc-std-workspace-std and rust-compiler-builtins.