diff --git a/communication/slack-config/restrictions.yaml b/communication/slack-config/restrictions.yaml
index b65f837db..2bcd1e017 100755
--- a/communication/slack-config/restrictions.yaml
+++ b/communication/slack-config/restrictions.yaml
@@ -63,7 +63,4 @@ restrictions:
       - "^prow"
       - "^testgrid"
       - "^testing"
-    usergroups:
-      - "^test-infra-oncall$"
-      - "^google-build-admin$"
   - path: "**/*" # prevent any other file from containing anything
diff --git a/communication/slack-config/sig-testing/usergroups.yaml b/communication/slack-config/sig-testing/usergroups.yaml
deleted file mode 100644
index 87b257142..000000000
--- a/communication/slack-config/sig-testing/usergroups.yaml
+++ /dev/null
@@ -1,8 +0,0 @@
-usergroups:
-  # maintained by https://github.com/kubernetes/test-infra/blob/master/experiment/slack-oncall-updater
-  - name: test-infra-oncall
-    external: true
-
-  # maintained by https://github.com/kubernetes/test-infra/blob/master/experiment/slack-oncall-updater
-  - name: google-build-admin
-    external: true
\ No newline at end of file