Editing Snaps Theme code

I am using snaps theme at https://www.soulluciani.com. Click the image of the woman which takes you to a post. I am trying to get rid of the sidebar information (name, date, bookmark the permalink) inside the post and expand the gallery inside to full screen.

I found that edited the single php code <?php get_template_part( ‘content’ , ‘single’ ); ?>
controls the info in the post. However, I am not sure what to change it to or if there is a better way to achieve what I am looking for.

Please help, thank you.