Remove Homebrewed GNU coreutils from path

I had these set up in the first place mostly because GNU ls supports
--color=auto and the BSD ls provided with MacOS didn't, causing problems
if I aliased ls to ls --color=auto.

And I don't really need that any more, especially since I prefer to use
lsd-rs/lsd in place of the coreutils ls nowadays. Additionally, the BSD
ls that comes with MacOS now *does* support that flag, so in a pinch it
can do what I need.

Defaulting to the natively installed coreutils should help my usage of
these tools more portable too, rather than always relying on GNU-isms.
Given my huge reliance on Zsh-specific features that's not something I'm
doing super well anyway, but still.

dot-config/zsh/login/path

@@ -2,7 +2,6 @@
 path=(/usr/local/bin $path)
 if (( $+commands[brew] )); then
 	path=(
-		/usr/local/opt/coreutils/libexec/gnubin
 		/usr/local/sbin
 		~/Library/Python/*/bin(N)
 		/usr/local/share/google-cloud-sdk/bin