fix error

Jenkinsfile

@@ -43,13 +43,6 @@ def pre_test(){
     git checkout develop
     git pull
     git fetch
-    '''
-    catchError(buildResult: 'SUCCESS', stageResult: 'FAILURE') {
-                sh '''
-                git branch -D ${CHANGE_BRANCH}
-                '''
-    }
-    
     git checkout ${CHANGE_BRANCH}
     git pull
     git merge develop