help/Makefile.am: remove doc-dist-hook, confirmed no longer needed
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 <10ab4a620366487513eb6142e6429449f497066c@gmail.com>

tomboy-notes/tomboy,tomboy-notes/tomboy,tomboy-notes/tomboy,tomboy-notes/tomboy,tomboy-notes/tomboy