Remove not needed anymore ascii workaround

Ref: 62533e8

Signed-off-by: William Desportes <[email protected]>

Author: williamdes

src/Tools/TestGenerator.php

@@ -11,7 +11,6 @@
 use PhpMyAdmin\SqlParser\Lexer;
 use PhpMyAdmin\SqlParser\Parser;
 use PhpMyAdmin\SqlParser\Token;
-use PhpMyAdmin\SqlParser\UtfString;
 
 use function file_exists;
 use function file_get_contents;
@@ -26,7 +25,6 @@
 use function sprintf;
 use function str_contains;
 use function str_ends_with;
-use function str_replace;
 use function strpos;
 use function substr;
 
@@ -176,15 +174,6 @@ public static function build($type, $input, $output, $debug = null, $ansi = fals
         // Writing test's data.
         $encoded = $serializer->serialize($test);
 
-        /**
-         * Can not decode null char in keys.
-         *
-         * @see UtfString::$asciiMap
-         */
-        if (str_contains($encoded, '"asciiMap":{"\u0000":0,"')) {
-            $encoded = str_replace('"asciiMap":{"\u0000":0,"', '"asciiMap":{"', $encoded);
-        }
-
         $encoded = json_encode(
             json_decode($encoded),
             JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE | JSON_PRESERVE_ZERO_FRACTION