The snippet you need to simply remove page navigation (pagination) with Genesis 2.0 is:
remove_action( 'genesis_after_endwhile', 'genesis_posts_nav' );
An example conditional using this is:
add_action ( 'genesis_after_entry', 'sk_remove_pagination' );
function sk_remove_pagination() {
if ( is_home() ) {
remove_action( 'genesis_after_endwhile', 'genesis_posts_nav' );
}
}
Sources:
https://gist.github.com/braddalton/5030437
http://sridharkatakam.com/remove-pagination-posts-page-genesis/
Google 'genesis remove pagination'