Build JavaMelody plugin on stable-3.1[1-4]

Change-Id: I71e997ea0e6ceb143b63a669647a63e4064e194d

jenkins/gerrit-bazel-plugin-javamelody.yaml

diff --git a/jenkins/gerrit-bazel-plugin-javamelody.yaml b/jenkins/gerrit-bazel-plugin-javamelody.yaml
index 3e7afd2..40b814f 100644
--- a/jenkins/gerrit-bazel-plugin-javamelody.yaml
+++ b/jenkins/gerrit-bazel-plugin-javamelody.yaml
@@ -33,10 +33,6 @@
       - 'plugin-{name}-bazel-{branch}':
           branch:
             - master
-      - 'plugin-{name}-bazel-{branch}-{gerrit-branch}':
-          branch:
-            - master
-          gerrit-branch:
             - stable-3.14
             - stable-3.13
             - stable-3.12