rekahsoft-gnu: Remove emacs-doom-themes (use guix channel instead)

* rekahsoft-gnu/packages/emacs-xyz.scm (emacs-doom-themes-20201225):
Remove variable

rekahsoft-gnu/packages/emacs-xyz.scm

@@ -60,30 +60,6 @@
                    ((#:phases phases)
                     `(alist-delete 'check ,phases)))))))
 
-(define-public emacs-doom-themes-20201225
-  (let ((commit "3761dfce75144e49789b6576e187acd82e2731ee")
-        (revision "1"))
-    (package
-      (inherit emacs-doom-themes)
-      (version (git-version "2.1.6" revision commit))
-      (name "emacs-doom-themes-20201225")
-      (source (origin
-                (method git-fetch)
-                (uri (git-reference
-                      (url "https://github.com/hlissner/emacs-doom-themes")
-                      (commit commit)))
-                (file-name (git-file-name name version))
-                (sha256
-                 (base32 "0a0lz9kkaaxj2r8xkcgyczz9pxq5hb4kd8mivqxmcj9572xs6v1r"))))
-      (arguments
-       (substitute-keyword-arguments
-           (package-arguments emacs-doom-themes)
-         ((#:phases phases)
-          `(modify-phases ,phases
-             (add-after 'unpack 'remove-broken-themes
-               (lambda _
-                 (delete-file "themes/doom-plain-theme.el"))))))))))
-
 (define-public emacs-helm-tramp
   (package
     (name "emacs-helm-tramp")