Enhancing STC and cleaning up various test topos.

Change-Id: I7f5b349835ebf3d7da824be0aa2cddd860631f84
diff --git a/tools/test/scenarios/setup.xml b/tools/test/scenarios/setup.xml
index 1a8d754..8fefb81 100644
--- a/tools/test/scenarios/setup.xml
+++ b/tools/test/scenarios/setup.xml
@@ -20,10 +20,10 @@
         <parallel var="${OC#}">
             <step name="Push-Bits-${#}" exec="onos-push-bits ${OC#}" unless="${OCT}"/>
             <step name="Uninstall-${#}" exec="onos-uninstall ${OC#}"/>
-            <step name="Kill-${#}" env="~" exec="onos-kill ${OC#}"/>
+            <step name="Kill-${#}" env="~" exec="onos-kill ${OC#}" requires="Uninstall-${#}"/>
 
             <step name="Install-${#}" exec="onos-install ${OC#}"
-                  requires="Uninstall-${#},Push-Bits-${#},Push-Bits"/>
+                  requires="Kill-${#},Push-Bits-${#},Push-Bits"/>
 
             <step name="Wait-for-Start-${#}" exec="onos-wait-for-start ${OC#}"
                   requires="Install-${#}"/>
@@ -31,9 +31,9 @@
             <step name="Check-Logs-${#}" exec="onos-check-logs ${OC#}"
                   requires="~Wait-for-Start-${#}"/>
             <step name="Check-Components-${#}" exec="onos-check-components ${OC#}"
-                  requires="~Wait-for-Start-${#},~Check-Logs-${#}"/>
+                  requires="~Wait-for-Start-${#},"/>
             <step name="Check-Apps-${#}" exec="onos-check-apps ${OC#}"
-                  requires="~Wait-for-Start-${#},~Check-Logs-${#}"/>
+                  requires="~Wait-for-Start-${#}"/>
         </parallel>
     </group>
 </scenario>