Reply To: How to remove page title on home only?

I’ve tried this

add_action( 'get_header', 'child_remove_page_titles' );
function child_remove_page_titles() {
if ( is_home() && ! is_page_template( 'page_portfolio.php' ) )
remove_action( 'genesis_entry_header', 'genesis_do_post_title' );
}

but doesn’t work.

Can anyone help?