Remove unnecessary method in FilterScheduler
Remove unnecessary method in FilterScheduler

Since no in-tree filters are using directly the related dict keys in
filter_properties but as they are also provided in the instance_properties
for any out-of-tree filter which would use them, we can just remove them
from filter_properties.

Partially-Implements: blueprint request-spec-object

Change-Id: Ie89f3084a2a26857e1317ffd64e495cc94718676

JianyuWang/nova,rahulunair/nova,CCI-MOC/nova,devendermishrajio/nova,devendermishrajio/nova_test_latest,takeshineshiro/nova,zhimin711/nova,devendermishrajio/nova,cyx1231st/nova,whitepages/nova,ruslanloman/nova,gooddata/openstack-nova,TwinkleChawla/nova,noironetworks/nova,sebrandon1/nova,fnordahl/nova,jianghuaw/nova,CEG-FYP-OpenStack/scheduler,vmturbo/nova,yosshy/nova,BeyondTheClouds/nova,varunarya10/nova_test_latest,dims/nova,klmitch/nova,vmturbo/nova,yosshy/nova,Juniper/nova,ruslanloman/nova,cernops/nova,varunarya10/nova_test_latest,klmitch/nova,takeshineshiro/nova,mahak/nova,akash1808/nova_test_latest,shail2810/nova,zaina/nova,Juniper/nova,cyx1231st/nova,barnsnake351/nova,edulramirez/nova,LoHChina/nova,nikesh-mahalka/nova,rajalokan/nova,JianyuWang/nova,iuliat/nova,watonyweng/nova,rahulunair/nova,cernops/nova,akash1808/nova_test_latest,mahak/nova,BeyondTheClouds/nova,apporc/nova,gooddata/openstack-nova,nikesh-mahalka/nova,ted-gould/nova,felixma/nova,TwinkleChawla/nova,rajalokan/nova,hanlind/nova,gooddata/openstack-nova,zzicewind/nova,bigswitch/nova,jianghuaw/nova,apporc/nova,j-carpentier/nova,vmturbo/nova,bigswitch/nova,BeyondTheClouds/nova,Juniper/nova,CCI-MOC/nova,ted-gould/nova,mikalstill/nova,phenoxim/nova,watonyweng/nova,cloudbase/nova,openstack/nova,rahulunair/nova,whitepages/nova,j-carpentier/nova,openstack/nova,vmturbo/nova,NeCTAR-RC/nova,dims/nova,isyippee/nova,CEG-FYP-OpenStack/scheduler,MountainWei/nova,rajalokan/nova,Francis-Liu/animated-broccoli,zzicewind/nova,alaski/nova,cernops/nova,scripnichenko/nova,mmnelemane/nova,scripnichenko/nova,jianghuaw/nova,MountainWei/nova,klmitch/nova,openstack/nova,mikalstill/nova,raildo/nova,mahak/nova,felixma/nova,noironetworks/nova,JioCloud/nova_test_latest,alaski/nova,phenoxim/nova,edulramirez/nova,rajalokan/nova,hanlind/nova,fnordahl/nova,mmnelemane/nova,mikalstill/nova,iuliat/nova,zaina/nova,isyippee/nova,NeCTAR-RC/nova,raildo/nova,JioCloud/nova_test_latest,LoHChina/nova,devendermishrajio/nova_test_latest,Juniper/nova,cloudbase/nova,barnsnake351/nova,sebrandon1/nova,gooddata/openstack-nova,sebrandon1/nova,jianghuaw/nova,zhimin711/nova,hanlind/nova,klmitch/nova,shail2810/nova,Francis-Liu/animated-broccoli,cloudbase/nova