Query result formatter: remove column 'Index' from table head

There is no data column for the head column 'Index'.

Author: middlebrain

src/PHPCR/Shell/Console/Helper/ResultFormatterHelper.php

@@ -68,7 +68,6 @@ public function formatQueryResult(QueryResultInterface $result, OutputInterface
         $table = new Table($output);
         $table->setHeaders(array_merge([
             'Path',
-            'Index',
         ], $result->getColumnNames()));
 
         foreach ($result->getRows() as $row) {