Add missing sriov_agent.ini + update test structure

Change-Id: If431aa5dc8c65abf6e4da947421f3c6cfb8f820d
Related-PROD: PROD-25611
diff --git a/tests/pillar/control_l2gw.sls b/tests/pillar/control_l2gw.sls
index b1c2065..30e5b72 100644
--- a/tests/pillar/control_l2gw.sls
+++ b/tests/pillar/control_l2gw.sls
@@ -53,12 +53,4 @@
       'create_network:shared':
     version: pike
     l2gw:
-      enabled: true
-linux:
-  system:
-    enabled: true
-    repo:
-      mirantis_openstack_pike:
-        source: "deb http://mirror.fuel-infra.org/mcp-repos/pike/xenial pike main"
-        architectures: amd64
-        key_url: "http://mirror.fuel-infra.org/mcp-repos/pike/xenial/archive-mcppike.key"
+      enabled: true
\ No newline at end of file