[california] Remove reference to non-existing mailing list 'california-list'

[Andre Klapper <aklapper src gnome org>]

commit 530403784154fb7fe6c61d8ec57d116b380a53ba
Author: Andre Klapper <a9016009 gmx de>
Date:   Sun Mar 3 10:33:34 2019 +0100

    Remove reference to non-existing mailing list 'california-list'

 README | 3 ---
 1 file changed, 3 deletions(-)
---
diff --git a/README b/README
index 79be1ac..0bdd6f6 100644
--- a/README
+++ b/README
@@ -34,9 +34,6 @@
     Yorba:                      http://www.yorba.org
     California home page:       https://wiki.gnome.org/Apps/California
 
-    We also encourage you to join the California mailing list.  See
-    http://mail.gnome.org/mailman/listinfo/california-list for details.
-
 
 
     Copyright 2014-2015 Yorba Foundation