How to Prevent Star Rating on Pages

You could try something like this:

Hook into the_content before the kento_star_rate_frontend filter has been called, check if it’s a page, and remove the kento_star_rate_frontend filter.

add_filter( 'the_content', 'no_star_ratings', 0 );

function no_star_ratings( $content )
{
    # page(s) to remove star ratings from
    'page' === is_page() && remove_filter( 'the_content', 'kento_star_rate_frontend' );
    return $content;
}

This reference may help you if you want to tweak which pages show stars or not
http://codex.wordpress.org/Function_Reference/is_page