[IMP]Stock module in  Rename Waiting availability to Waiting field and c...

...ount_picking_waiting function extra add a doamin waiting.
https://www.odoo.com/web?#id=10568&view_type=form&model=project.task&action=327
pad: https://pad.odoo.com/p/r.xYno4lStHsqVTOfk
Waiting Availability seems clear to me. I don't know the reason for removing it either.