[IMP] gamification : remove karma_position field
[IMP] gamification : remove karma_position field

Since task Id 2000687  and PR #33475, karma position field is not necessary anymore
as the karma position is computed directly in the website_profile controller.

Task ID: 2001367
PR #35103

Signed-off-by: Thibault Delavallee (tde) <2d325771bb6e8870d87f0f3f7b45589a8338e550@openerp.com>
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo