Bug 25301: removed useless URI parameter "categorycode" from template

Bug 25301: removed useless URI parameter "categorycode" from template

Both "Edit details" links were sending empty query parameter
"categorycode" as there is no such template parameter in "moremember.pl"
defined at all, because template code block looks copy-pasted
from "circulation.tt".

This patch removes the parameter from "moremember.tt" template.

To test:
    1) You need to create or find expired or expiring patron.
    2) Head to patron details page of that patron.
    3) Inspect both "Edit details" links:
       one in the notification about expiration
       and other one in the "Expiration date:" field.
    4) Observe empty parameter "categorycode=" in those links.
    5) Apply patch.
    6) Repeat step 3.
    7) Check that there's no "categorycode=" in the links anymore.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>
Signed-off-by: Joy Nelson <joy@bywatersolutions.com>