Ash here from the Shopify team. Welcome to the Shopify Community!
I understand you wish to remove your name from the side of your blog posts. I'm happy to help out with this! In order to remove the author name from blog posts, you'll need to edit the code template that generates the blog pages. We have a great tutorial here which explains how to do this for most themes. If you're using the Debut or Minimal theme, there's an option to remove the author name right from within the Theme Customizer. That document I linked has more details on this. For all other Shopify-made themes, if you need further assistance, our Theme Support team might be able to assist.
May I ask why you'd like to remove your name from the blog posts? Is there an alternate name you'd possibly want to display instead?