Docs: Do not mention POT files
Docs: Do not mention POT files

We do not store POT files anymore [1] in our repositories, so update the
documentation that it does not mention POT files.

[1]
http://lists.openstack.org/pipermail/openstack-dev/2016-May/094215.html

Change-Id: I3fb12123f741cece94e0d10e3558a66b37cee558

BiznetGIO/horizon,BiznetGIO/horizon,yeming233/horizon,bac/horizon,openstack/horizon,wolverineav/horizon,yeming233/horizon,noironetworks/horizon,coreycb/horizon,openstack/horizon,sandvine/horizon,bac/horizon,ChameleonCloud/horizon,sandvine/horizon,noironetworks/horizon,noironetworks/horizon,NeCTAR-RC/horizon,BiznetGIO/horizon,NeCTAR-RC/horizon,ChameleonCloud/horizon,ChameleonCloud/horizon,coreycb/horizon,openstack/horizon,ChameleonCloud/horizon,wolverineav/horizon,NeCTAR-RC/horizon,yeming233/horizon,openstack/horizon,noironetworks/horizon,wolverineav/horizon,wolverineav/horizon,bac/horizon,coreycb/horizon,NeCTAR-RC/horizon,sandvine/horizon,BiznetGIO/horizon,sandvine/horizon,coreycb/horizon,bac/horizon,yeming233/horizon