Fix opt description for scheduler.py
Fix opt description for scheduler.py

Removed the 'Services that use...' as per [0].
Also, there are no deprecated options in this file, so the
'check_deprecation_status' flag has been removed, too.

[0] https://wiki.openstack.org/wiki/ConfigOptionsConsistency

Blueprint centralize-config-options-newton

Change-Id: Ic9edf054a3431a02717ade93a92d4b0e7fd8ac81

openstack/nova,mikalstill/nova,jianghuaw/nova,hanlind/nova,klmitch/nova,sebrandon1/nova,rajalokan/nova,jianghuaw/nova,sebrandon1/nova,openstack/nova,gooddata/openstack-nova,phenoxim/nova,gooddata/openstack-nova,vmturbo/nova,phenoxim/nova,mahak/nova,alaski/nova,rahulunair/nova,cloudbase/nova,hanlind/nova,Juniper/nova,hanlind/nova,rajalokan/nova,rahulunair/nova,klmitch/nova,mikalstill/nova,gooddata/openstack-nova,jianghuaw/nova,Juniper/nova,gooddata/openstack-nova,sebrandon1/nova,klmitch/nova,alaski/nova,openstack/nova,mahak/nova,vmturbo/nova,vmturbo/nova,klmitch/nova,cloudbase/nova,rajalokan/nova,rajalokan/nova,Juniper/nova,rahulunair/nova,cloudbase/nova,mikalstill/nova,vmturbo/nova,jianghuaw/nova,Juniper/nova,mahak/nova