Remove workaround for slashes in page title

This was reported in #22 and has been fixed upstream in electron-userland/electron-packager#308

src/infer/inferTitle.js

@@ -18,8 +18,7 @@ function inferTitle(url) {
     const $ = cheerio.load(data);
     return $('title')
       .first()
-      .text()
-      .replace(/\//g, '');
+      .text();
   });
 }