Revert "load helpers in all patches"

patches/patch20150715-0/patch.sh

patches/patch20151022-0/patch.sh

patches/patch20151111-0/patch.sh

patches/patch20151218-0/patch.sh

patches/patch20151224-0/patch.sh

patches/patch20160111-0/patch.sh

patches/patch20160112-0/patch.sh

patches/patch20160113-0/patch.sh

patches/patch20160114-0/patch.sh

patches/patch20160203-0/patch.sh

patches/patch20160217-2.0.10/patch.sh

patches/patch20160318-2.0.11/patch.sh

patches/patch20160319-2.0.12/patch.sh

patches/patch20160322-2.0.13/patch.sh

patches/patch20160329-2.0.14/patch.sh

patches/patch20160423-2.0.15/patch.sh

patches/patch20160827-2.0.16/patch.sh

patches/patch20160917-2.0.17/patch.sh

patches/patch20160919-2.0.18/patch.sh

patches/patch20160919-2.0.19/patch.sh