redbear-mini: re-drop lib-only redbear-cli (re-added by first-class-citizen pass)

redbear-cli is a pure Rust lib (no bin); listing it makes repo cook fail with
'no packages found with binaries'. Its arg-parsing is already linked into
mtr/netctl/traceroute. Keeping mini's package list lib-free.

config/redbear-mini.toml

@@ -37,7 +37,6 @@ redbear-iwlwifi = {}
 redbear-firmware-iwlwifi = {}
 
 # Shared CLI library for redbear-* tools (standardized --help, --version, --log-level, etc.)
-redbear-cli = {}
 
 # Redox-native netctl tooling.
 redbear-netctl = {}