Completely rename the default context of commit status from github-plugin

Keywords: git jenkins groovy jenkins-pipeline

Question: 

While using the the Github plugin to trigger build automatically when a new PR coming up or new commit (for multiple branch pipeline job). I want to change the commit status context so each job will be separated with the others.

I acquire this by using the built-in "setBuildStatus" function in their document (https://wiki.jenkins.io/display/JENKINS/Github+Plugin) But instead of replacing the default context, it just add another context. So if I have 3 job runs for the PR, i'll have 4 checks.

screenshot

How can I completely remove the: continuous-integration/jenkins/pr-merge?

Answers: