[FIX] point_of_sale: hide debug manager and chatter
[FIX] point_of_sale: hide debug manager and chatter

When printing a receipt in the PoS, the debug manager and the Livechat
content are displayed in the receipt. That's obviously something we
don't want.

opw-668675

ygol/odoo,dfang/odoo,Elico-Corp/odoo_OCB,dfang/odoo,sysadminmatmoz/OCB,dfang/odoo,bplancher/odoo,sysadminmatmoz/OCB,sysadminmatmoz/OCB,storm-computers/odoo,stephen144/odoo,laslabs/odoo,storm-computers/odoo,microcom/odoo,bplancher/odoo,ygol/odoo,sysadminmatmoz/OCB,laslabs/odoo,ygol/odoo,storm-computers/odoo,bplancher/odoo,Elico-Corp/odoo_OCB,ygol/odoo,stephen144/odoo,hip-odoo/odoo,microcom/odoo,storm-computers/odoo,storm-computers/odoo,Elico-Corp/odoo_OCB,sysadminmatmoz/OCB,ygol/odoo,microcom/odoo,laslabs/odoo,ygol/odoo,laslabs/odoo,microcom/odoo,microcom/odoo,microcom/odoo,hip-odoo/odoo,Elico-Corp/odoo_OCB,storm-computers/odoo,dfang/odoo,ygol/odoo,dfang/odoo,Elico-Corp/odoo_OCB,stephen144/odoo,Elico-Corp/odoo_OCB,stephen144/odoo,bplancher/odoo,dfang/odoo,hip-odoo/odoo,bplancher/odoo,laslabs/odoo,sysadminmatmoz/OCB,hip-odoo/odoo,hip-odoo/odoo,stephen144/odoo,sysadminmatmoz/OCB,bplancher/odoo,laslabs/odoo,hip-odoo/odoo,stephen144/odoo