Backbord pro theme slider advertising

I cannot delete the following quote from my first slider See it here: http://www.lamericainesweettreats.com

"Premium WordPress Themes with Single Click Installation, Just a Click and your website is ready for use."

help !
thank you
Eric​

 

Hello,

Paste this code in Custom CSS
Appearance > Theme Option > Styling Option > Custom CSS

Code:

.flex-caption p{
display:none;
} 

Thanks & Regards
Gourav Shrivastava