[TEST] Add back skip of external clusters

modules/transport-netty4/src/test/java/org/elasticsearch/ESNetty4IntegTestCase.java

@@ -30,6 +30,11 @@ import java.util.Collection;
 
 public abstract class ESNetty4IntegTestCase extends ESIntegTestCase {
 
+    @Override
+    protected boolean ignoreExternalCluster() {
+        return true;
+    }
+
     @Override
     protected boolean addMockTransportService() {
         return false;

qa/smoke-test-http/src/test/java/org/elasticsearch/http/HttpSmokeTestCase.java

@@ -78,4 +78,10 @@ public abstract class HttpSmokeTestCase extends ESIntegTestCase {
                 .put(NetworkModule.TRANSPORT_TYPE_KEY, clientTypeKey)
                 .build();
     }
+
+    @Override
+    protected boolean ignoreExternalCluster() {
+        return true;
+    }
+
 }