function plt_hide_my_simple_space_dashboard_widgets() {
$screen = get_current_screen();
if ( !$screen ) {
return;
}
//Remove the "My Simple Space" widget.
remove_meta_box('simple_space_widget', 'dashboard', 'side');
}
add_action('wp_dashboard_setup', 'plt_hide_my_simple_space_dashboard_widgets', 20);