Remove "udpated" class from the mailichimp form message.

Author: iamdharmesh

mailchimp_widget.php

@@ -184,7 +184,7 @@ function mailchimp_sf_signup_form( $args = array() ) {
 
 	<div class="mc_form_inside">
 
-		<div class="updated mc_message_wrapper" id="mc_message">
+		<div class="mc_message_wrapper" id="mc_message">
 			<?php echo wp_kses_post( mailchimp_sf_frontend_msg() ); ?>
 		</div><!-- /mc_message -->