Fix gold aggregator for pathkit

Bug: skia:
Change-Id: Ib54625fa54b0c07ee72b3bec9cf13a3e9556cdf8
Reviewed-on: https://skia-review.googlesource.com/c/161626
Reviewed-by: Stephan Altmueller <stephana@google.com>
diff --git a/infra/bots/recipes/test_pathkit.py b/infra/bots/recipes/test_pathkit.py
index 3ed789f..6bfd687 100644
--- a/infra/bots/recipes/test_pathkit.py
+++ b/infra/bots/recipes/test_pathkit.py
@@ -17,7 +17,7 @@
 ]
 
 
-DOCKER_IMAGE = 'gcr.io/skia-public/gold-karma-chrome-tests:68.0.3440.106_v4'
+DOCKER_IMAGE = 'gcr.io/skia-public/gold-karma-chrome-tests:68.0.3440.106_v5'
 INNER_KARMA_SCRIPT = '/SRC/skia/infra/pathkit/test_pathkit.sh'
 
 
@@ -119,7 +119,6 @@
     cmd.extend([
       '--issue',         api.vars.issue,
       '--patchset',      api.vars.patchset,
-      '--patch_storage', api.vars.patch_storage,
     ])
 
   api.run(