Fix Fpdf example

Author: sprain

Diff for: .gitignore

@@ -4,3 +4,4 @@
 /.php_cs.cache
 /example/TcPdfOutput/tcpdf_example.pdf
 /example/HtmlOutput/html-example.htm
+/example/FpdfOutput/fpdf_example.pdf

Diff for: example/FpdfOutput/fpdf-example.php

@@ -21,9 +21,4 @@
 $examplePath = __DIR__ . "/fpdf_example.pdf";
 $fpdf->Output($examplePath, 'F');
 
-if (file_exists(dirname(__DIR__) . '/qr.svg')) {
-    unlink(dirname(__DIR__) . '/qr.svg');
-    unlink(dirname(__DIR__) . '/qr.png');
-}
-
 print "PDF example created here : " . $examplePath;