Fixing a build error

A parameter has been removed, but the next PR merged cleanly while still
using the removed parameter.

test/cpp/end2end/xds_end2end_test.cc

@@ -3830,7 +3830,7 @@ TEST_P(ClientLoadReportingTest, SendAllClusters) {
       {"locality0", GetBackendPorts()},
   });
   balancers_[0]->ads_service()->SetEdsResource(
-      AdsServiceImpl::BuildEdsResource(args), kDefaultResourceName);
+      AdsServiceImpl::BuildEdsResource(args));
   // Wait until all backends are ready.
   int num_ok = 0;
   int num_failure = 0;