e2e: Remove startstop tag from story_health

In the Makefile we have `e2e-story-health` target which contain
`~startstop` tag and it means this scenario not even taken into account.
This PR remove that tag from story_health scenario so it can run with
`make e2e-story-health`.

test/e2e/features/story_openshift.feature

@@ -7,7 +7,7 @@ Feature: 4 Openshift stories
 
 	# End-to-end health check
 
-	@darwin @linux @windows @startstop @testdata @story_health @needs_namespace
+	@darwin @linux @windows @testdata @story_health @needs_namespace
 	Scenario: Overall cluster health
 		Given executing "oc create namespace testproj" succeeds
 		When executing "oc apply -f httpd-example.yaml" succeeds