If we do not save message to database we can not track that message and also when somebody will reply from email we will not know which message they replied to.

Add following code in your theme’s (child theme’s if any) functions.php

add_action( 'admin_menu', function(){
	remove_menu_page( 'fep-all-messages' );
}, 11 );

Add following code in your theme’s (child theme’s if any) functions.php

add_action( 'admin_menu', function(){
	remove_submenu_page( 'fep-all-messages', 'fep-all-messages' );
}, 11 );