Issue #3158270 by Hardik_Patel_12, siddhant.bhosale, paulocs: Unused local...

Issue #3158270 by Hardik_Patel_12, siddhant.bhosale, paulocs: Unused local variables in SelectComplexTest file

(cherry picked from commit fde0132b)

core/tests/Drupal/KernelTests/Core/Database/SelectComplexTest.php

@@ -161,8 +161,8 @@ public function testRange() {
    */
   public function testRangeUndo() {
     $query = $this->connection->select('test');
-    $name_field = $query->addField('test', 'name');
-    $age_field = $query->addField('test', 'age', 'age');
+    $query->addField('test', 'name');
+    $query->addField('test', 'age', 'age');
     $query->range(0, 2);
     $query->range(NULL, NULL);
     $query_result = $query->countQuery()->execute()->fetchField();