[Add,imp]:Remove expense 'sheet' concept

Task: https://www.odoo.com/web#id=9989&view_type=form&model=project.task&menu_id=3942&action=327
Pad: https://pad.odoo.com/p/r.bd4JuNZUZclDd9oL
@rim-odoo
it's functionality in Sheet , if one expense is "Approved" by hr manger than no need to cancel a other expense's because .Other expense's line in cancel state by "Generate Accounting Entries" button.