Commits pushed on the odoo/tutorials repository are not automatically
forward-ported, which makes it cumbersome to keep all SaaS branches up
to date.
Because of this, and because Odoo developers are very unlikely to follow
tutorials specific to a SaaS branch, links to odoo/tutorials now target
the current major branch, or master if applicable. SaaS branches have
also been deleted from the odoo/tutorials repository.
X-original-commit: ce14b2cfb5
Part-of: odoo/documentation#4280
b6962c8349