diff --git a/core/modules/file/src/Upload/InputStreamUploadedFile.php b/core/modules/file/src/Upload/InputStreamUploadedFile.php
index 4eaba1f1d80deeff1b993ce8c509eb5bf451b071..2aa0cf3225c9170a0e229c77895b5a81ed24bf73 100644
--- a/core/modules/file/src/Upload/InputStreamUploadedFile.php
+++ b/core/modules/file/src/Upload/InputStreamUploadedFile.php
@@ -56,27 +56,6 @@ public function getPathname(): string {
     throw new \BadMethodCallException(__METHOD__ . ' not implemented');
   }
 
-  /**
-   * {@inheritdoc}
-   */
-  public function isValid(): bool {
-    throw new \BadMethodCallException(__METHOD__ . ' not implemented');
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getErrorMessage(): string {
-    throw new \BadMethodCallException(__METHOD__ . ' not implemented');
-  }
-
-  /**
-   * {@inheritdoc}
-   */
-  public function getError(): int {
-    throw new \BadMethodCallException(__METHOD__ . ' not implemented');
-  }
-
   /**
    * {@inheritdoc}
    */