[REVERT] partially revert bf922b1.
[REVERT] partially revert bf922b1.

This check has to be (and already is) done in `stock` module

ygol/odoo,Elico-Corp/odoo_OCB,Elico-Corp/odoo_OCB,bplancher/odoo,alhashash/odoo,stephen144/odoo,storm-computers/odoo,tvtsoft/odoo8,alhashash/odoo,bplancher/odoo,laslabs/odoo,sysadminmatmoz/OCB,syci/OCB,microcom/odoo,tvtsoft/odoo8,storm-computers/odoo,ygol/odoo,microcom/odoo,sysadminmatmoz/OCB,mkieszek/odoo,optima-ict/odoo,microcom/odoo,Elico-Corp/odoo_OCB,hip-odoo/odoo,deKupini/erp,syci/OCB,syci/OCB,sysadminmatmoz/OCB,microcom/odoo,addition-it-solutions/project-all,ygol/odoo,addition-it-solutions/project-all,optima-ict/odoo,hip-odoo/odoo,storm-computers/odoo,alhashash/odoo,optima-ict/odoo,addition-it-solutions/project-all,stephen144/odoo,Grirrane/odoo,bplancher/odoo,Grirrane/odoo,alhashash/odoo,bplancher/odoo,laslabs/odoo,mkieszek/odoo,ygol/odoo,microcom/odoo,dfang/odoo,addition-it-solutions/project-all,mkieszek/odoo,stephen144/odoo,stephen144/odoo,storm-computers/odoo,Elico-Corp/odoo_OCB,Grirrane/odoo,mkieszek/odoo,sysadminmatmoz/OCB,alhashash/odoo,deKupini/erp,syci/OCB,dfang/odoo,mkieszek/odoo,laslabs/odoo,Grirrane/odoo,alhashash/odoo,tvtsoft/odoo8,laslabs/odoo,stephen144/odoo,tvtsoft/odoo8,stephen144/odoo,storm-computers/odoo,deKupini/erp,hip-odoo/odoo,sysadminmatmoz/OCB,dfang/odoo,deKupini/erp,optima-ict/odoo,optima-ict/odoo,dfang/odoo,Elico-Corp/odoo_OCB,Elico-Corp/odoo_OCB,sysadminmatmoz/OCB,sysadminmatmoz/OCB,addition-it-solutions/project-all,syci/OCB,laslabs/odoo,hip-odoo/odoo,syci/OCB,addition-it-solutions/project-all,hip-odoo/odoo,microcom/odoo,tvtsoft/odoo8,laslabs/odoo,bplancher/odoo,optima-ict/odoo,bplancher/odoo,dfang/odoo,ygol/odoo,Grirrane/odoo,Grirrane/odoo,dfang/odoo,ygol/odoo,ygol/odoo,hip-odoo/odoo,tvtsoft/odoo8,mkieszek/odoo,storm-computers/odoo,deKupini/erp