Revert "Use delta to view diffs in Magit"

This reverts commit 7e936bfe84.

config.el

@@ -115,11 +115,6 @@
         elfeed-goodies/tag-column-width 0)
   (elfeed-protocol-enable)
   (add-hook! 'elfeed-search-mode-hook 'elfeed-update))
-;; Use delta to view diffs in Magit
-(use-package! magit-delta
-  :after magit
-  :config
-  (magit-delta-mode))
 ;; Set up the mail stack
 (after! mu4e (load! "+mail"))
 ;; HACK Enable AOT native compilation

packages.el

@@ -10,7 +10,6 @@
 (package! emacsql-sqlite)
 (package! wallabag :recipe (:host github :repo "chenyanming/wallabag.el" :files ("*.el" "*.alist" "*.css")))
 (package! elfeed-protocol)
-(package! magit-delta)
 (package! engrave-faces)
 (package! org-modern)
 (package! org-auto-tangle)