There is a function in simple social plugin called insert_buttons
in simple-social-buttons/simple-social-buttons.php
. This function puts social buttons to your content. You can make an exception there like;
function insert_buttons($content) {
global $post;
if ( !empty( $post ) ) {
if ( get_post_type( $post ) == "your_post_type") {
return $content;
}
}
......
}
Edit: How to do that?
1) Open plugin editor in admin panel
2) Select Simple Social Buttons
from the list
3) Select buttons/simple-social-buttons.php
from list
4) Update insert_buttons
function as I mentioned above