Debug/TokenList: no need to touch Xdebug settings

As `var_dump()` isn't used in this sniff, no need to overload the Xdebug settings.

This was a remnant of an earlier version of this code.

Author: jrfnl

Debug/Sniffs/Debug/TokenListSniff.php

@@ -65,8 +65,6 @@ public function process(File $phpcsFile, $stackPtr)
         $ptrPadding  = max(3, strlen($last));
         $linePadding = strlen($tokens[$last]['line']);
 
-        $oldIniValue = \ini_set('xdebug.overload_var_dump', 1);
-
         echo \PHP_EOL;
         echo \str_pad('Ptr', $ptrPadding, ' ', \STR_PAD_BOTH),
             ' :: ', \str_pad('Ln', ($linePadding + 1), ' ', \STR_PAD_BOTH),
@@ -108,11 +106,6 @@ public function process(File $phpcsFile, $stackPtr)
                 ' :: [', $token['length'], ']: ', $content, \PHP_EOL;
         }
 
-        // If necessary, reset the ini setting.
-        if ($oldIniValue !== false) {
-            \ini_set('xdebug.overload_var_dump', $oldIniValue);
-        }
-
         // Only do this once per file.
         return ($phpcsFile->numTokens + 1);
     }