[gnome-calendar] build: remove mention to non-existent file

[Erick Pérez Castellanos <erickpc src gnome org>]

commit 1b88c2fd89bc3bdc7d73435e96043ce178dcc823
Author: Erick Pérez Castellanos <erick red gmail com>
Date:   Mon Dec 22 22:08:50 2014 -0500

    build: remove mention to non-existent file
    
    Fix make distcheck

 data/Makefile.am |    1 -
 1 files changed, 0 insertions(+), 1 deletions(-)
---
diff --git a/data/Makefile.am b/data/Makefile.am
index 3717c19..84085d1 100644
--- a/data/Makefile.am
+++ b/data/Makefile.am
@@ -23,7 +23,6 @@ EXTRA_DIST=                     \
   ui/edit-dialog.ui             \
   ui/menus.ui                   \
   ui/nav_bar.ui                 \
-  ui/new-event.ui               \
   ui/time-selector.ui           \
   ui/window.ui                  \
   theme/gtk-styles.css          \