Remove scenario008 jobs

ODL is no longer tested.

Change-Id: I056f69aab636d7d03c1eb78b38078f80e7150ca9

zuul.d/layout.yaml

@@ -67,17 +67,6 @@
               - ^deployed-server/.*$
               - ^common/.*$
               - zuul.d/*
-        - tripleo-ci-centos-7-scenario008-multinode-oooq-container:
-            dependencies: *deps_unit_lint
-            files:
-              - ci/environments/scenario008-multinode-containers.yaml
-              - ^(deployment|docker|puppet)/(odl|opendaylight).*$
-              - ^(deployment|docker|puppet)/neutron-plugin-ml2.yaml #LP1765975
-              - ^ci/common/.*$
-              - ^environments\/.*.yaml
-              - ^deployed-server/.*$
-              - ^common/.*$
-              - zuul.d/*
         - tripleo-ci-centos-7-scenario009-multinode-oooq-container:
             dependencies: *deps_unit_lint
             voting: true