3516487: Mercury Editor templates are duplicated.

Closes #3516487

modules/mercury_editor_templates/mercury_editor_templates.module

@@ -113,26 +113,6 @@ function mercury_editor_templates_preprocess_layout_paragraphs_builder_controls(
   }
 }
 
-function mercury_editor_templates_preprocess_layout_paragraphs_builder_component_menu(&$variables) {
-  if (empty($variables['groups'])) {
-    $variables['groups'] = [];
-  }
-  if (isset($variables['types']['layout'])) {
-    $templates = array_filter($variables['types']['layout'], function ($type) {
-      return !empty($type['is_template']);
-    });
-    $variables['types']['layout'] = array_filter($variables['types']['layout'], function ($type) {
-      return empty($type['is_template']);
-    });
-    if (count($templates)) {
-      $variables['groups']['templates'] = [
-        'label' => t('Templates'),
-        'items' => $templates,
-      ];
-    }
-  }
-}
-
 /**
  * Implements hook_entity_type_build().
  */