Bug 31530: Remove HTML tags in TT comments in patron-search.inc

Bug 31530: Remove HTML tags in TT comments in patron-search.inc

Signed-off-by: Caroline Cyr La Rose <caroline.cyr-la-rose@inlibro.com>
To test:
1) Without patch, search for patron-search.inc in misc/translator/po/xx-XX-staff-prog.po
--> There should be strings with pound signs such as "%%] %s [%%# - branch: "
2) Apply patch
3) Update translation files `translate update xx-XX`
4) Search again for patron-search.inc in
misc/translator/po/xx-XX-staff-prog.po
--> The problematic strings are not there anymore
5) In the staff interface, go to Patrons, the search box and search
function should be unchanged

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>