Localizer: drop support for dtml-gettext tag
This seems to be used only in Localizer's ZMI. This is not compatible with newer version of DocumentTemplate, but because we don't use, it's better to remove the functionality
This seems to be used only in Localizer's ZMI. This is not compatible with newer version of DocumentTemplate, but because we don't use, it's better to remove the functionality
This will create a new commit in order to revert the existing changes.