Hide featured image in post if not pupulated

Hi…

When I have a post with featured image everything is ok, but when the post hasn′t featured image the template charge an empty div, how I can solve this issue?

Thanks a lot for your help,

without featured image: https://prntscr.com/1eczoh //
with Featured image: https://prntscr.com/1eczxr

And this is the code that I′m using in single.php
https://prntscr.com/1ed08l

-jd