fix(apple): go back to previous icon

Turns out that <U+F8FF> is a reserved unicode code that is Apple logo in
Apple systems.
Nerd fonts was overwritting that code to other stuff in v2 and that's
why I thought it needed to be replaced.

Closes #11665

This reverts commit 693e3dcc447b5d6fa611eea43166ea2b4e0ed877.

themes/apple.zsh-theme

@@ -1,5 +1,5 @@
 function toon {
-  echo -n "󰐀"
+  echo -n ""
 }
 
 autoload -Uz vcs_info