diff --git a/lisp/vc/vc-hooks.el b/lisp/vc/vc-hooks.el
index e4c174ed859..cfca7b4662e 100644
--- a/lisp/vc/vc-hooks.el
+++ b/lisp/vc/vc-hooks.el
@@ -687,9 +687,6 @@ Before doing that, check if there are any old backups and get rid of them."
            (vc-make-version-backup file)))))
 
 (declare-function vc-dir-resynch-file "vc-dir" (&optional fname))
-(declare-function vc-diff-outgoing "vc" (&optional remote-location fileset))
-(declare-function vc-diff-incoming "vc" (&optional remote-location fileset))
-(declare-function vc-working-tree-switch-project "vc" (dir))
 
 (defvar vc-dir-buffers nil "List of `vc-dir' buffers.")