wip: only run image tests

Author: luohao

test/run-k8s-integration-ci.sh

@@ -102,7 +102,7 @@ if [ -n "$gke_node_version" ]; then
 fi
 
 if [ "$test_disk_image_snapshot" = true ]; then
-  base_cmd="${base_cmd} --snapshotclass-files=image-volumesnapshotclass.yaml,pd-volumesnapshotclass.yaml"
+  base_cmd="${base_cmd} --snapshotclass-files=image-volumesnapshotclass.yaml"
 else
   base_cmd="${base_cmd} --snapshotclass-files=pd-volumesnapshotclass.yaml"
 fi