refactor!(cli): remove compile and clean commands

BREAKING CHANGE: This removes the 'doom compile' and 'doom clean'
commands, and offers no immediate replacement for them (and no plan to
include one). In the future, byte-compilation of Doom's internals will
be baked into 'doom sync', but until then, Doom is not optimized to take
advantage of byte-compilation, and forcing it provides no benefit.

lisp/cli/upgrade.el

@@ -3,7 +3,6 @@
 ;;; Code:
 
 (load! "packages")
-(load! "compile")
 
 
 ;;