Issue #2072565 by legolasbo: Remove Unused local variable () from /core/modules/file/lib/Drupal/file/Tests/FileFieldWidgetTest.php.

core/modules/views/lib/Drupal/views/Plugin/views/join/JoinPluginBase.php

@@ -209,7 +209,6 @@ class JoinPluginBase extends PluginBase {
       if (is_array($this->extra)) {
         $extras = array();
         foreach ($this->extra as $info) {
-          $extra = '';
           // Figure out the table name. Remember, only use aliases provided
           // if at all possible.
           $join_table = '';