[FIX] mail: fix email template preview action
[FIX] mail: fix email template preview action

SPECIFICATIONS

In the mail template views, remove the contextual action "Template preview"
from action dropdown. It was a duplicate of smart button in the template
form view and makes no sense in the tree view.

Task ID 2075733

closes odoo/odoo#37425

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

ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo,ygol/odoo