How to Hide Contractor Contact Form Website to Workflow Tool Admin Menus

function plt_hide_contractor_contact_form_website_to_workflow_tool_menus() {
	//Hide "Leap".
	remove_menu_page('jp_admin_page');
	//Hide "Leap → Leap".
	remove_submenu_page('jp_admin_page', 'jp_admin_page');
	//Hide "Leap → Customers".
	remove_submenu_page('jp_admin_page', 'jp_customer_page');
	//Hide "Leap → Settings".
	remove_submenu_page('jp_admin_page', 'jp_settings_page');
}

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

Where do I put this code?