If you’re removing elements that are supposed to be part of the theme, then you are making custom changes. These may require that you make CSS changes in the code. You can use Chrome to inspect the area and then find the CSS section that you may need to remove. Check out this article for more information on how to do that. The image below is an example of me looking at the same theme and using Chrome’s inspect option to see where I need to make changes.
If you continue to have difficulty with it, please provide a screenshot of the section you’re trying to change.