There are a few different options for removing the sidebar from your theme.
1. How to disable the sidebar everywhere
You can disable the sidebar entirely by going to Appearance > Customize in your dashboard. Then look in the "Layout Options" tab for:
2. How to disable the sidebar on a single page
To disable the sidebar on a page, you can select the "Full Width Page" template from the options when editing the page:
3. Disable the sidebar on a single blog post
Note: this feature is currently unavailable on some themes. We will be adding this to a future update very soon.
You can disable or move the sidebar on a specific post by using the options in the post editor. When you edit a post, look for this box near the bottom of the page:
Article tags: side bar