Build saml plugin on own 3.2 and 3.3 branches

Change-Id: I51eb670be0c7d40e24a423ae8b766d173fb8e668
diff --git a/jenkins/gerrit-plugin-saml.yaml b/jenkins/gerrit-plugin-saml.yaml
index c813bc3..b7a03ec 100644
--- a/jenkins/gerrit-plugin-saml.yaml
+++ b/jenkins/gerrit-plugin-saml.yaml
@@ -4,11 +4,7 @@
       - 'plugin-{name}-bazel-{branch}':
           branch:
             - master
-            - stable-3.1
-            - stable-2.16
-      - 'plugin-{name}-bazel-{branch}-{gerrit-branch}':
-          branch:
-            - master
-          gerrit-branch:
             - stable-3.3
             - stable-3.2
+            - stable-3.1
+            - stable-2.16