Description of the issue/feature this PR addresses: Before this commit assign_me button and clock icon from start button is shown in project task , project sharing as well as helpdesk ticket. This commit remove assign_me buttom and clock icon from start button in project task, project sharing and helpdesk ticket. task-3292056 closes odoo/odoo#120378 Related: odoo/enterprise#40630 Signed-off-by: Xavier Bol (xbo) <xbo@odoo.com>