[tomboy] help/Makefile.am: remove doc-dist-hook, confirmed no longer needed

[Alex Tereschenko <alexter src gnome org>]

commit 18b394fff9bb7e82c135a7f185b6c79ec4400433
Author: Alex Tereschenko <frozen and blue gmail com>
Date:   Sun Nov 13 15:03:02 2016 +0100

    help/Makefile.am: remove doc-dist-hook, confirmed no longer needed
    
    As per example patches referenced on the migration page [1] this is indeed
    not needed.
    
    [1] https://wiki.gnome.org/action/show/Initiatives/GnomeGoals/NewDocumentationInfrastructure
    
    Signed-off-by: Alex Tereschenko <frozen and blue gmail com>

 help/Makefile.am |    5 -----
 1 files changed, 0 insertions(+), 5 deletions(-)
---
diff --git a/help/Makefile.am b/help/Makefile.am
index 6726267..8d6d880 100644
--- a/help/Makefile.am
+++ b/help/Makefile.am
@@ -1,11 +1,6 @@
 
 @YELP_HELP_RULES@
 
-# TODO: it's unclear to me whether after migrating to Yelp
-# this is needed or not. Seems to work without it,
-# but needs to be checked. GH issue #18.
-#dist-hook: doc-dist-hook
-
 HELP_ID = tomboy
 DOC_INCLUDES = legal.xml
 HELP_MEDIA = \