remove git_repository
diff --git a/buildkite/pipelines/subpar-postsubmit.json b/buildkite/pipelines/subpar-postsubmit.json
index 068000c..0357ff4 100644
--- a/buildkite/pipelines/subpar-postsubmit.json
+++ b/buildkite/pipelines/subpar-postsubmit.json
@@ -1,5 +1,4 @@
 {
-  "git_repository": "https://github.com/google/subpar.git",
   "platforms": {
     "ubuntu1404": {"build_targets": ["..."], "test_targets": ["..."]},
     "ubuntu1604": {"build_targets": ["..."], "test_targets": ["..."]}