Remove unnecesarry git-gutter package related function.

configs/init-functions.el

@@ -43,14 +43,6 @@
     	(insert current-line)
     	(decf n)))))
 
-;; Mostrar y ocultar el diff de la línea de git-gutter
-(defun git-gutter:toggle-popup-hunk ()
-  "Toggle 'git-gutter' hunk window."
-  (interactive)
-  (if (and (get-buffer "*git-gutter:diff*") (window-live-p (git-gutter:popup-buffer-window)))
-      (delete-window (git-gutter:popup-buffer-window))
-    (git-gutter:popup-hunk)))
-
 ;; Obtener el nombre del proyecto desde project.el
 (defun kj/project-name (&optional project)
   "Return the name for PROJECT.