EDITENG : Remove usage of DBG_CTOR and DBG_DTOR.

Valgrind is capable of detecting such bugs. No need for extra macros.

Change-Id: Ifc04e2ec9d27c706868569a3bcb8fbfae0e84c69
Reviewed-on: https://gerrit.libreoffice.org/7524
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>