Hover your cursor over the comment and click "Delete" to delete it. The paragraph block will change back to white.
If you want to remove the yellow color marking the comment in the paragraph block while keeping the comment, you can use the Resolved function.
1. Place your cursor on the comment and click "Resolve."
2. The paragraph panel reverts to white. Click "Resolved" tab to see the comment.
3. Click "Restore" to restore the yellow color marking the comment in the paragraph block.
4. Click "Comment" tab to see your recovered comment.