This reverts commit 430f4904ed.
This should not be done in stable, for 3 reasons:
1: There is no migration scripts, so every people that will migrate from previous version will have a second product discount created in their DB
2: Existing DB that will activate discount will have 2 products discounts
3: It breaks an industry module that depends of this data
For those reasons, I'll revert this commit before it is deployed next week.
To correctly do your changes, you just need to do it in master and create a migration script that will rename the xml_id.
closesodoo/odoo#143104
Signed-off-by: Pierre Masereel (pim) <pim@odoo.com>