Revert the accidentally touched grpc_xds_k8s.sh (#26560)

tools/internal_ci/linux/grpc_xds_k8s.sh

@@ -104,8 +104,7 @@ run_test() {
     --client_image="${CLIENT_IMAGE_NAME}:${GIT_COMMIT}" \
     --xml_output_file="${TEST_XML_OUTPUT_DIR}/${test_name}/sponge_log.xml" \
     --force_cleanup \
-    --nocheck_local_certs \
-    ${@:2}
+    --nocheck_local_certs
   set +x
 }
 
@@ -145,10 +144,6 @@ main() {
   cd "${TEST_DRIVER_FULL_DIR}"
   run_test baseline_test
   run_test security_test
-  run_test url_map \
-    --namespace=interop-psm-url-map \
-    --server_xds_port=8848 \
-    --debug_use_port_forwarding
 }
 
 main "$@"