Move the changes from patch 3128190-15.patch to a Git merge request.

Closes #3128190

core/lib/Drupal/Core/Field/TypedData/FieldItemDataDefinition.php

@@ -87,19 +87,4 @@ public function setFieldDefinition($field_definition) {
     return $this;
   }
 
-  /**
-   * Gets the label of the field type.
-   *
-   * If the label hasn't been set, then fall back to the label of the
-   * typed data definition.
-   *
-   * @return string
-   *   The label of the field type.
-   *
-   * @throws \Drupal\Component\Plugin\Exception\PluginNotFoundException
-   */
-  public function getLabel() {
-    return parent::getLabel() ?: $this->getTypedDataManager()->getDefinition($this->getDataType())['label'];
-  }
-
 }