If for any reason you don´t want the Speakers Bio to appear, follow these simple steps:
1. Backup the original files before making any changes.
2. Navigate to Appearance>>Editor and open the Speakers Page Template (template-speakers.php)
3. Look for the line: the_content(); (around line number 40)
4. Remove this line or add two backslashes before the line to comment it, like this: //the_content();
5. Update the file.