Issue #3189878 by Matroskeen: Remove temporaryPath property from d7/File source plugin

core/modules/file/src/Plugin/migrate/source/d7/File.php

@@ -29,13 +29,6 @@ class File extends DrupalSqlBase {
    */
   protected $privatePath;
 
-  /**
-   * The temporary file directory path.
-   *
-   * @var string
-   */
-  protected $temporaryPath;
-
   /**
    * {@inheritdoc}
    */
@@ -73,7 +66,6 @@ public function query() {
   protected function initializeIterator() {
     $this->publicPath = $this->variableGet('file_public_path', 'sites/default/files');
     $this->privatePath = $this->variableGet('file_private_path', NULL);
-    $this->temporaryPath = $this->variableGet('file_temporary_path', '/tmp');
     return parent::initializeIterator();
   }
 
@@ -83,7 +75,7 @@ protected function initializeIterator() {
   public function prepareRow(Row $row) {
     // Compute the filepath property, which is a physical representation of
     // the URI relative to the Drupal root.
-    $path = str_replace(['public:/', 'private:/', 'temporary:/'], [$this->publicPath, $this->privatePath, $this->temporaryPath], $row->getSourceProperty('uri'));
+    $path = str_replace(['public:/', 'private:/'], [$this->publicPath, $this->privatePath], $row->getSourceProperty('uri'));
     // At this point, $path could be an absolute path or a relative path,
     // depending on how the scheme's variable was set. So we need to shear out
     // the source_base_path in order to make them all relative.