Remove obsolete ldap package configuration

init.el

@@ -2885,12 +2885,6 @@ With given ARG, display files in `db/important-document-path’."
             (add-hook 'haskell-mode-hook
                       'interactive-haskell-mode)))
 
-(use-package ldap
-  :commands (ldap-search)
-  :init (setq ldap-default-host ""
-              ldap-default-base "O=DFN-Verein,C=DE"
-              ldap-ldapsearch-args '("-x" "-tt" "-H ldaps://ldap.pca.dfn.de")))
-
 (use-package markdown-mode
   :ensure t
   :commands (markdown-mode)