Remove job trigger when change is pushed to GitHub

Author: david-vo

templates/default/job_config_pr.xml.erb

@@ -33,9 +33,6 @@
   <blockBuildWhenDownstreamBuilding>false</blockBuildWhenDownstreamBuilding>
   <blockBuildWhenUpstreamBuilding>false</blockBuildWhenUpstreamBuilding>
   <triggers>
-    <com.cloudbees.jenkins.GitHubPushTrigger plugin="github@1.8">
-      <spec></spec>
-    </com.cloudbees.jenkins.GitHubPushTrigger>
     <org.jenkinsci.plugins.ghprb.GhprbTrigger plugin="ghprb@1.9">
       <spec></spec>
       <adminlist><%= @job_admins_list %></adminlist>