diff --git a/formatPreserving.php b/formatPreserving.php
deleted file mode 100644
index 5a3c290..0000000
--- a/formatPreserving.php
+++ /dev/null
@@ -1,56 +0,0 @@
-<?php
-
-namespace Foo;
-
-use PhpParser;
-use PhpParser\Node;
-
-require __DIR__ . '/vendor/autoload.php';
-
-$lexer = new PhpParser\Lexer\Emulative([
-    'usedAttributes' => [
-        'comments',
-        'startLine', 'endLine',
-        'startFilePos', 'endFilePos',
-        'startTokenPos', 'endTokenPos',
-    ],
-]);
-
-$parser = new PhpParser\Parser\Php7($lexer, [
-        'useIdentifierNodes' => true,
-        'useConsistentVariableNodes' => true,
-    ]
-);
-
-$traverser = new PhpParser\NodeTraverser();
-$traverser->addVisitor(new PhpParser\NodeVisitor\CloningVisitor());
-
-$printer = new PhpParser\PrettyPrinter\Standard();
-
-$code = <<<'PHP'
-<?php
-
-function foo() {
-    echo
-        1
-            +
-                2
-                    +
-                        3;
-
-    echo "a";
-
-    echo "b";
-}
-PHP;
-
-$oldStmts = $parser->parse($code);
-$oldTokens = $lexer->getTokens();
-
-$newStmts = $traverser->traverse($oldStmts);
-
-$newStmts[0]->stmts[0]->exprs[0]->left->right->value = 42;
-$newStmts[0]->stmts[1] = new Node\Expr\Assign(new Node\Expr\Variable('a'), new Node\Scalar\LNumber(42));
-
-$newCode = $printer->printFormatPreserving($newStmts, $oldStmts, $code, $oldTokens);
-echo $newCode, "\n";
\ No newline at end of file