Remove EnableSorting since it was only used with false as argument
and unwind to remove too mpEntryCompare, mbSortingEnabled,
InsertEntry which become useless
Finally remove TemplateDir which becomes just a wrapper class for a vector

Change-Id: I1e4ead009711f67fe75f3231761cc8966a39f57b
Reviewed-on: https://gerrit.libreoffice.org/41333Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>