Remove Jetpack css and cruft - in functions.php
// DISABLE / remove Jetpack CSS
// First, make sure Jetpack doesn't concatenate all its CSS
add_filter( 'jetpack_implode_frontend_css', '__return_false' );
// Then, remove each CSS file, one at a time
function jeherve_remove_all_jp_css() {
wp_deregister_style( 'AtD_style' ); // After the Deadline
wp_deregister_style( 'jetpack_likes' ); // Likes
wp_deregister_style( 'jetpack_related-posts' ); //Related Posts
wp_deregister_style( 'jetpack-carousel' ); // Carousel
wp_deregister_style( 'grunion.css' ); // Grunion contact form
wp_deregister_style( 'the-neverending-homepage' ); // Infinite Scroll
wp_deregister_style( 'infinity-twentyten' ); // Infinite Scroll - Twentyten Theme
wp_deregister_style( 'infinity-twentyeleven' ); // Infinite Scroll - Twentyeleven Theme
wp_deregister_style( 'infinity-twentytwelve' ); // Infinite Scroll - Twentytwelve Theme
wp_deregister_style( 'noticons' ); // Notes
wp_deregister_style( 'post-by-email' ); // Post by Email
wp_deregister_style( 'publicize' ); // Publicize
wp_deregister_style( 'sharedaddy' ); // Sharedaddy
wp_deregister_style( 'sharing' ); // Sharedaddy Sharing
wp_deregister_style( 'stats_reports_css' ); // Stats
wp_deregister_style( 'jetpack-widgets' ); // Widgets
wp_deregister_style( 'jetpack-slideshow' ); // Slideshows
wp_deregister_style( 'presentations' ); // Presentation shortcode
wp_deregister_style( 'jetpack-subscriptions' ); // Subscriptions
wp_deregister_style( 'tiled-gallery' ); // Tiled Galleries
wp_deregister_style( 'widget-conditions' ); // Widget Visibility
wp_deregister_style( 'jetpack_display_posts_widget' ); // Display Posts Widget
wp_deregister_style( 'gravatar-profile-widget' ); // Gravatar Widget
wp_deregister_style( 'widget-grid-and-list' ); // Top Posts widget
wp_deregister_style( 'jetpack-widgets' ); // Widgets
wp_deregister_style( 'jetpack-widget-social-icons-styles' ); // Social icons
}
add_action('wp_print_styles', 'jeherve_remove_all_jp_css' );