refactor(wpcarro/emacs): Simplify fonts.el

- Drop `cycle` and all associated methods
- Fix call-sites depedencies

Change-Id: I35304424c0c3925f5bf7771dec33e75d326d0961
Reviewed-on: https://cl.tvl.fyi/c/depot/+/7315
Tested-by: BuildkiteCI
Reviewed-by: wpcarro <wpcarro@gmail.com>

users/wpcarro/emacs/.emacs.d/wpc/wpc-ui.el

@@ -166,9 +166,7 @@
 (when window-system
   ;; On OSX, JetBrainsMono is installed as "JetBrains Mono", and I'm
   ;; not sure how to change that.
-  (let ((font (if (memq window-system '(ns))
-		  "JetBrains Mono"
-		"JetBrainsMono")))
+  (let ((font (if (memq window-system '(ns)) "JetBrains Mono" "JetBrainsMono")))
     (fonts-set font)
     ;; Some themes (e.g. doom-acario-*) change the font for comments. This
     ;; should prevent that.