Removing Image link on Post

Delete Line No. 31 and 32 from the single.php file

<div class="floatleft"><?php previous_image_link( false, '&laquo; Previous Image' ); ?></div>
<div class="floatright"><?php next_image_link( false, 'Next Image &raquo;' ); ?></div>

I removed this and it still didn’t work – any other suggestions?

https://interiordesigner-sandiego.com/help-with-new-light-bulbs/

Thanks,