remove maven_parent_file declaration. it is not needed anymore

Jenkinsfile

@@ -2,7 +2,7 @@
 import org.yaml.snakeyaml.Yaml
 
 // set the build options according to the Type of build
-def (options, maven_local_repo_path, maven_settings_file, maven_activation_property, maven_parent_file) = ['', '', '', '', '']
+def (options, maven_local_repo_path, maven_settings_file, maven_activation_property) = ['', '', '', '']
 def agent_root_folder = '/var/lib/jenkins/.m2'
 def verbose = true
 def resume = params.resume_from
@@ -12,7 +12,6 @@ if (params.Type == 'SNAPSHOT-DRY-RUN') {
     maven_local_repo_path = "local-snapshots"
     maven_settings_file = "gcube-settings.xml" 
     maven_activation_property="-Pdry-run";
- //   maven_parent_file = "jenkins-snapshots-dry-run-settings.xml"
 }
 if (params.Type == 'SNAPSHOT') {
     echo "Configure Maven for SNAPSHOT artifacts"
@@ -20,7 +19,6 @@ if (params.Type == 'SNAPSHOT') {
     maven_local_repo_path = "local-snapshots"
     maven_settings_file = "gcube-settings.xml"
     maven_activation_property='';
- //   maven_parent_file = "jenkins-snapshots-dry-run-settings.xml"
 }
 if (params.Type == 'RELEASE-DRY-RUN') {
     echo "Configure Maven for RELEASE-DRY-RUN artifacts"
@@ -28,7 +26,6 @@ if (params.Type == 'RELEASE-DRY-RUN') {
     maven_local_repo_path = "local-releases"
     maven_settings_file = "jenkins-releases-settings.xml"
     maven_activation_property="-Pdry-run -Djenkins-releases -DRelease";
- //   maven_parent_file = "jenkins-releases-dry-run-settings.xml"
 }
 if (params.Type == 'STAGING') {
     echo "Configure Maven for STAGING artifacts"
@@ -36,7 +33,6 @@ if (params.Type == 'STAGING') {
     maven_local_repo_path = "local-staging"
     maven_settings_file = "jenkins-staging-settings.xml"
     maven_activation_property="-Djenkins-staging -DRelease";
- //   maven_parent_file = "jenkins-staging-dry-run-settings.xml"
 }
 if (params.Type == 'RELEASE') {
     echo "Configure Maven for RELEASE artifacts"
@@ -44,9 +40,7 @@ if (params.Type == 'RELEASE') {
     maven_local_repo_path = "local-releases"
     maven_settings_file = "jenkins-releases-settings.xml"
     maven_activation_property="-Djenkins-releases -DRelease";
- //   maven_parent_file = "jenkins-releases-dry-run-settings.xml"
 }
-maven_parent_file=maven_settings_file;
 
 echo "Use settings file at ${maven_settings_file} with the following activation property: ${maven_activation_property}"
 echo "Use local repo at ${maven_local_repo_path}"
@@ -99,7 +93,6 @@ pipeline {
         AGENT_ROOT_FOLDER = "${agent_root_folder}"
         MAVEN_SETTINGS_FILE = "${maven_settings_file}"
         MAVEN_ACTIVATION_PROPERTY = "${maven_activation_property}"
-        MAVEN_PARENT_FILE = "${maven_parent_file}"
         MAVEN_LOCAL_REPO = "${agent_root_folder}/${maven_local_repo_path}"
         CLEANUP_GCUBE_REPO = "${params.cleanup_gcube_artifacts}"
         REMOVE_LOCAL_REPO = "${params.cleanup_local_repo}"