[evince] help: Remove deleted file also from Makefile.am, not only meson.build

[Andre Klapper <aklapper src gnome org>]

commit d955b3126eea2d5aa51373c455a14038510b2b4f
Author: Andre Klapper <a9016009 gmx de>
Date:   Mon Feb 17 13:32:01 2020 +0100

    help: Remove deleted file also from Makefile.am, not only meson.build
    
    No idea why I did not see this one when using grep. Sorry.

 help/Makefile.am | 1 -
 1 file changed, 1 deletion(-)
---
diff --git a/help/Makefile.am b/help/Makefile.am
index 43783ff8..3110030b 100644
--- a/help/Makefile.am
+++ b/help/Makefile.am
@@ -9,7 +9,6 @@ HELP_MEDIA = \
        figures/annotations-nav-to-page.png     \
        figures/evincelogo.png                  \
        figures/evince-trail.png                \
-       figures/list-add-tabs.png               \
        figures/print-select.png                \
        figures/reverse-collate.png             \
        figures/zoom.png