Build reviewers plugin on its own master/stable-3.2 branches

Change-Id: I90d35cc720d3cf02f725524c8705d0c305439118
diff --git a/jenkins/gerrit-bazel-plugin-reviewers.yaml b/jenkins/gerrit-bazel-plugin-reviewers.yaml
index 525d070..b440fd1 100644
--- a/jenkins/gerrit-bazel-plugin-reviewers.yaml
+++ b/jenkins/gerrit-bazel-plugin-reviewers.yaml
@@ -1,14 +1,10 @@
 - project:
     name: reviewers
     jobs:
-      - 'plugin-{name}-bazel-{branch}-{gerrit-branch}':
-          branch:
-            - master
-          gerrit-branch:
-            - master
-            - stable-3.2
       - 'plugin-{name}-bazel-{branch}':
           branch:
+            - master
+            - stable-3.2
             - stable-3.1
             - stable-3.0
             - stable-2.16