app-emacs/magit: remove unused patch

Closes: https://github.com/gentoo/gentoo/pull/1826

Signed-off-by: Patrice Clement <monsieurp@gentoo.org>

app-emacs/magit/files/magit-1.2.0-delete-directory.patch

@@ -1,33 +0,0 @@
-Fix byte-compile failure with Emacs 24.3.91.
-
-The upstream git repo has a more complicated fix which we don't use,
-because the Gentoo package need not care about Emacs 22 and XEmacs
-compatibility. Instead, always define magit-delete-directory as an
-alias of delete-directory. This will work for all supported Emacs
-versions.
-
---- magit-1.2.0-orig/magit.el
-+++ magit-1.2.0/magit.el
-@@ -775,21 +775,7 @@
-                 after-change-functions)
-             ,@body)))))
- 
--  (if (>= (magit-max-args-internal 'delete-directory) 2)
--      (defalias 'magit-delete-directory 'delete-directory)
--    (defun magit-delete-directory (directory &optional recursive)
--      "Deletes a directory named DIRECTORY.  If RECURSIVE is non-nil,
--recursively delete all of DIRECTORY's contents as well.
--
--Does not follow symlinks."
--      (if (or (file-symlink-p directory)
--              (not (file-directory-p directory)))
--          (delete-file directory)
--        (if recursive
--            ;; `directory-files-no-dot-files-regex' borrowed from Emacs 23
--            (dolist (file (directory-files directory 'full "\\([^.]\\|\\.\\([^.]\\|\\..\\)\\).*"))
--              (magit-delete-directory file recursive)))
--        (delete-directory directory)))))
-+  (defalias 'magit-delete-directory 'delete-directory))
- 
- ;;; Utilities
-