Promote aggregator e2e test to conformance

test/conformance/testdata/conformance.txt

+test/e2e/apimachinery/aggregator.go: "Should be able to support the 1.10 Sample API Server using the current Aggregator"
 test/e2e/apimachinery/custom_resource_definition.go: "creating/deleting custom resource definition objects works"
 test/e2e/apimachinery/garbage_collector.go: "should delete pods created by rc when not orphaning"
 test/e2e/apimachinery/garbage_collector.go: "should orphan pods created by rc if delete options say so"

test/e2e/apimachinery/aggregator.go

@@ -72,11 +72,12 @@ var _ = SIGDescribe("Aggregator", func() {
 		aggrclient = f.AggregatorClient
 	})
 
-	It("Should be able to support the 1.10 Sample API Server using the current Aggregator", func() {
-		// Make sure the relevant provider supports Aggregator
-		framework.SkipUnlessServerVersionGTE(serverAggregatorVersion, f.ClientSet.Discovery())
-		framework.SkipUnlessProviderIs("gce", "gke")
-
+	/*
+		    Testname: aggregator-supports-the-sample-apiserver
+		    Description: Ensure that the sample-apiserver code from 1.10 and compiled against 1.10
+			will work on the current Aggregator/API-Server.
+	*/
+	framework.ConformanceIt("Should be able to support the 1.10 Sample API Server using the current Aggregator", func() {
 		// Testing a 1.10 version of the sample-apiserver
 		TestSampleAPIServer(f, imageutils.GetE2EImage(imageutils.APIServer))
 	})