EWPP-1278: Remove language switcher builder callback, introduced in 2.x.

modules/oe_theme_helper/oe_theme_helper.module

@@ -15,8 +15,6 @@ use Drupal\Core\Form\FormStateInterface;
 use Drupal\image\Plugin\Field\FieldType\ImageItem;
 use Drupal\media\MediaInterface;
 use Drupal\oe_theme\ValueObject\ImageValueObject;
-use Drupal\oe_theme_helper\LanguageSwitcherBuilderCallback;
-use Drupal\Core\Block\BlockPluginInterface;
 
 /**
  * Implements hook_page_attachments().
@@ -309,17 +307,3 @@ function oe_theme_helper_form_entity_view_display_edit_form_alter(&$form, FormSt
     }
   }
 }
-
-/**
- * Implements hook_block_view_BASE_BLOCK_ID_alter().
- */
-function oe_theme_helper_block_view_oe_theme_helper_page_header_alter(array &$build, BlockPluginInterface $block) {
-  // Add pre-render callback to build and inject the content language switcher
-  // within the page header block.
-  if (\Drupal::service('module_handler')->moduleExists('oe_multilingual')) {
-    $build['#pre_render'][] = [
-      LanguageSwitcherBuilderCallback::class,
-      'preRender',
-    ];
-  }
-}