Commit https://github.com/odoo/odoo/commit/29075a8e2c734624cec4f6009185616634f70dea introduced some python methods which became useless with commit https://github.com/odoo/odoo/commit/aef6a5aaed22b250799ce92b5021d240fed9e12e They were not removed with that commit since it was a stable version and because it would have made forward-port difficult because of master tasks. Now that those tasks are merged, this commit removes the useless methods.