How to Hide Solace Extra Admin Menus

function plt_hide_solace_extra_menus() {
	//Hide "Solace".
	remove_menu_page('solace');
	//Hide "Solace → Solace".
	remove_submenu_page('solace', 'solace');
	//Hide "Solace → Dashboard".
	remove_submenu_page('solace', 'dashboard');
	//Hide "Solace → Site Builder".
	remove_submenu_page('solace', 'dashboard-sitebuilder');
	//Hide "Solace → Customization".
	remove_submenu_page('solace', 'dashboard-customization');
	//Hide "Solace → Starter Template".
	remove_submenu_page('solace', 'dashboard-starterlink');
	//Hide "Solace → Dashboard Video".
	remove_submenu_page('solace', 'dashboard-video');
	//Hide "Solace → Dashboard Type".
	remove_submenu_page('solace', 'dashboard-type');
	//Hide "Solace → Solace Step 5".
	remove_submenu_page('solace', 'dashboard-step5');
	//Hide "Solace → Solace Step 6".
	remove_submenu_page('solace', 'dashboard-step6');
	//Hide "Solace → Congratulations".
	remove_submenu_page('solace', 'dashboard-congratulations');
	//Hide "Solace → Dashboard Starter Templates".
	remove_submenu_page('solace', 'dashboard-starter-templates');
	//Hide "Solace → Dashboard Progress".
	remove_submenu_page('solace', 'dashboard-progress');
}

add_action('admin_menu', 'plt_hide_solace_extra_menus', 11);

Where do I put this code?