INFRA-381 Removing sonarqube (#6312)

.ci/dev/regression/Jenkinsfile

@@ -1,9 +1,13 @@
+@Library('corda-shared-build-pipeline-steps')
+import static com.r3.build.BuildControl.killAllExistingBuildsForJob
+
+killAllExistingBuildsForJob(env.JOB_NAME, env.BUILD_NUMBER.toInteger())
+
 pipeline {
     agent { label 'k8s' }
     options {
         timestamps()
         buildDiscarder(logRotator(daysToKeepStr: '7', artifactDaysToKeepStr: '7'))
-        disableConcurrentBuilds()
         timeout(time: 3, unit: 'HOURS')
     }
 
@@ -57,36 +61,6 @@ pipeline {
                                 " allParallelSlowIntegrationTest --stacktrace"
                     }
                 }
-
-                stage('Generate sonarqube report') {
-                    steps {
-                        script {
-                            try {
-                                // running this step here is the only way to not majorly affect the distributed test plugin,
-                                // as now that neither returns build files nor runs jacoco reports
-                                sh "./gradlew --no-daemon build jacocoRootReport --stacktrace"
-                                withSonarQubeEnv('sq01') {
-                                    sh "./gradlew --no-daemon sonarqube -x test --stacktrace"
-                                }
-                                timeout(time: 3, unit: 'MINUTES') {
-                                    script {
-                                       try {
-                                            def qg = waitForQualityGate();
-                                            if (qg.status != 'OK') {
-                                                error "Pipeline aborted due to quality gate failure: ${qg.status}"
-                                            }
-                                        } catch (org.jenkinsci.plugins.workflow.steps.FlowInterruptedException e) {
-                                            println('No sonarqube webhook response within timeout. Please check the webhook configuration in sonarqube.')
-                                            // continue the pipeline
-                                        }
-                                    }
-                                }
-                            } catch (err) {
-                                println('Error while trying to execute sonarqube analysis, will be skipped.')
-                            }
-                        }
-                    }
-                }
             }
         }
     }