Hide wp_editor when creating a new slider about slick-carousel-reloaded HOT 1 CLOSED

<?php
/**
 * Force users to specify slider size
 */
add_action('admin_notices', 'wpscr_check_slider_size');
function wpscr_check_slider_size() {
    global $pagenow;

    // Check if we are creating a new slider
    if (($_GET['post_type'] == 'slider') && $pagenow == 'post-new.php') {

        $class = 'notice notice-error';
        $notice = __( 'To upload pictures, you first need to specify the slider’s size (width and height). <a href="#">Learn why &rarr;</a>', WPSCR_I18NDOMAIN );

        // Customize the UI
        echo '<style>#postdivrich { display: none; } #wpscr_shortcode_metabox { opacity: 0.5; } #wpscr_shortcode_metabox * { cursor: not-allowed; }</style>';

        // Add notice
        printf( '<div class="%1$s"><p>%2$s</p></div>', $class, $notice );

    }
}