[TASK] Drop getIdentifier() function from Upgrade Wizards

Classes/Update/PowermailLanguageUpdateWizard.php

@@ -22,11 +22,6 @@
 #[UpgradeWizard('powermailLanguageUpdateWizard')]
 class PowermailLanguageUpdateWizard implements UpgradeWizardInterface
 {
-    public function getIdentifier(): string
-    {
-        return 'powermailLanguageUpdateWizard';
-    }
-
     public function getTitle(): string
     {
         return 'Powermail: Update language settings in mails and answers (relevant for entries from < 8.0.0)';

Classes/Update/PowermailPermissionSubmoduleUpdater.php

@@ -22,11 +22,6 @@
 #[UpgradeWizard('powermailPermissionSubmodulesUpdater')]
 class PowermailPermissionSubmoduleUpdater implements UpgradeWizardInterface
 {
-    public function getIdentifier(): string
-    {
-        return 'powermailPermissionSubmodulesUpdater';
-    }
-
     public function getTitle(): string
     {
         return 'EXT:powermail: Grant permissions for submodules to editors';

Classes/Update/PowermailPermissionUpdater.php

@@ -22,11 +22,6 @@
 #[UpgradeWizard('powermailPermissionUpdater')]
 class PowermailPermissionUpdater implements UpgradeWizardInterface
 {
-    public function getIdentifier(): string
-    {
-        return 'powermailPermissionUpdater';
-    }
-
     public function getTitle(): string
     {
         return 'EXT:powermail: Migrate plugin permissions';

Classes/Update/PowermailPluginUpdater.php

@@ -44,11 +44,6 @@ public function __construct()
         $this->flexFormService = GeneralUtility::makeInstance(FlexFormService::class);
     }
 
-    public function getIdentifier(): string
-    {
-        return 'powermailPluginUpdater';
-    }
-
     public function getTitle(): string
     {
         return 'Powermail: Migrate list types and switchable controller actions to CTypes';

Classes/Update/PowermailRelationUpdateWizard.php

@@ -22,11 +22,6 @@
 #[UpgradeWizard('powermailRelationUpdateWizard')]
 class PowermailRelationUpdateWizard implements UpgradeWizardInterface
 {
-    public function getIdentifier(): string
-    {
-        return 'powermailRelationUpdateWizard';
-    }
-
     public function getTitle(): string
     {
         return 'Powermail: Update relations in database (relevant for entries from < 8.0.0)';

Classes/Update/PowermailTextNullUpdateWizard.php

@@ -17,11 +17,6 @@
 #[UpgradeWizard('powermailTextNullUpdateWizard')]
 class PowermailTextNullUpdateWizard implements UpgradeWizardInterface
 {
-    public function getIdentifier(): string
-    {
-        return 'powermailTextNullUpdateWizard';
-    }
-
     public function getTitle(): string
     {
         return 'Powermail: Update all database TEXT fields that have a null value with a default value';