[FIX] product: template kanban view perf
[FIX] product: template kanban view perf

When displaying product template list in kanban mode, all the variants
of the product template are loaded but aren't used at all. This causes a
perf issue when loaded product templates have a lot of variants.

This commit removes the field `product_variant_ids` from view
`product_template_kanban_view` to avoid that perf issue.

opw 1951369

closes odoo/odoo#32048

Signed-off-by: Nicolas Martinelli (nim) <771435c469f83f6aa9c405ac5e1ed06314a94f2d@odoo.com>

closes odoo/odoo#32185

Signed-off-by: Nicolas Martinelli (nim) <771435c469f83f6aa9c405ac5e1ed06314a94f2d@odoo.com>
ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo