Remove quotes image from email signup on home page

I'd like to remove the quotation marks from the home page of the email signup section. How can I remove that and keep the text? My website is waypointchurch.org.

Thank you for always providing such great support!

 

Hello,

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

Code:

.signup-content .signupinfo{
background:none;
}