Remove Post Links from WordPress Dashboard

functions.php

<?php

// Remove Posts from Dashboard Sidebar
function m3_post_remove () { 
   remove_menu_page('edit.php');
}
add_action('admin_menu', 'm3_post_remove');   //adding action for triggering function call

// Remove Posts from Admin Menu
function m3_remove_wp_nodes() {
    global $wp_admin_bar;   
    $wp_admin_bar->remove_node( 'new-post' );
}
add_action( 'admin_bar_menu', 'm3_remove_wp_nodes', 999 );