Bug 14922: Remove C4::Dates from cataloguing/additem.pl

Bug 14922: Remove C4::Dates from cataloguing/additem.pl

This patch removes C4::Dates from cataloguing/additem.pl

To test:

- In MARC bibliographic framework, define a default value
  for one of the in Tag 952 Subfield struture, e.g. for
  subfield x Non-public note. You can define it under
  'Advancde constraints'. Define the value similar to the following:
  Year:YYYY Month:MM Day:DD
- Create a new item for a biblio and verify that YYYY, MM and DD are
  replaced with today's values.
- Apply patch and repeat that previous step behaves as before.
- Verify that the overall functionality of the form is the same
  as before applying the patch.

Signed-off-by: Hector Castro <hector.hecaxmmx@gmail.com>
Works as advertised. With the last script not accept more than YYYYMMDD
If you enter something else, the script sends to the end of line.
This patch follow up the pattern in constraint default value

Patch amended following comment #6  / mv

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>
Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>