Remove command-log-mode

This isn't vital enough a package to be included in core. Emacs already
provides view-lossage, and there are other, better packages for
displaying your keybinds as you type.

Even one that I've been working on (with special evil support):
https://github.com/hlissner/doom-emacs-private/blob/master/lisp/keycast.el

core/packages.el

@@ -18,7 +18,6 @@
 
 ;; core-editor.el
 (package! better-jumper)
-(package! command-log-mode)
 (package! dtrt-indent)
 (package! helpful)
 (package! ns-auto-titlebar :ignore (not IS-MAC))