WordPress snippet: Hide posts from admin

functions.php

<?php
add_action(
	'admin_menu',
	function() {
		/* Hide posts admin menu */
		remove_menu_page( 'edit.php' );
	}
);

add_action( 'wp_before_admin_bar_render', function() {
	global $wp_admin_bar;

	if ( $wp_admin_bar ) {
		/* Hide new post from admin bar */
		$wp_admin_bar->remove_menu( 'new-post' );
	}
});