Bug 11232: (followup) remove unnecesary namespace definition from all XML elements

Bug 11232: (followup) remove unnecesary namespace definition from all XML elements

The previous patches for facet extraction from Zebra indexes set a default
namespace on the following files:

etc/zebradb/marc_defs/marc21/biblios/biblio-koha-indexdefs.xml
etc/zebradb/marc_defs/normarc/biblios/biblio-koha-indexdefs.xml
etc/zebradb/marc_defs/unimarc/biblios/biblio-koha-indexdefs.xml

and hence the XML file index_subfields can be cleaned by removing the namespace.

To test:
- Apply this patch
- Run

$ for i in marc21 normarc unimarc
  do xsltproc etc/zebradb/xsl/koha-indexdefs-to-zebra.xsl \
              etc/zebradb/marc_defs/$i/biblios/biblio-koha-indexdefs.xml \
              > etc/zebradb/marc_defs/$i/biblios/biblio-zebra-indexdefs.xsl
  done

=> SUCCESS: no errors reported

- Run
$ git diff
=> SUCCESS: no differences on the xsl files

- Sign off :-D

Sponsored-by: Universidad Nacional de Cordoba
Signed-off-by: David Cook <dcook@prosentient.com.au>
Seems to work with DOM and MARC21.

Signed-off-by: Jonathan Druart <jonathan.druart@biblibre.com>
Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@gmail.com>