Build stable-3.1 branch of high-availability plugin

Change-Id: I394a655ddff07abb3ca7312e215eed222e2a9e0f
diff --git a/jenkins/gerrit-bazel-plugin-high-availability.yaml b/jenkins/gerrit-bazel-plugin-high-availability.yaml
index 2b82520..34d60fc 100644
--- a/jenkins/gerrit-bazel-plugin-high-availability.yaml
+++ b/jenkins/gerrit-bazel-plugin-high-availability.yaml
@@ -1,14 +1,10 @@
 - project:
     name: high-availability
     jobs:
-      - 'plugin-{name}-bazel-{branch}-{gerrit-branch}':
-          branch:
-            - master
-          gerrit-branch:
-            - master
-            - stable-3.1
       - 'plugin-{name}-bazel-{branch}':
           branch:
+            - master
+            - stable-3.1
             - stable-3.0
             - stable-2.16
       - 'plugin-{name}-gerritforge-{branch}':