How to Hide WPFront User Role Editor Admin Menus

function plt_hide_wpfront_user_role_editor_menus() {
	//Hide "Users → Assign / Migrate".
	remove_submenu_page('users.php', 'wpfront-user-role-editor-assign-roles');

	//Hide "Roles".
	remove_menu_page('wpfront-user-role-editor-all-roles');
	//Hide "Roles → All Roles".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-all-roles');
	//Hide "Roles → Add New".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-add-new');
	//Hide "Roles → Restore".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-restore');
	//Hide "Roles → Add/Remove Cap".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-add-remove-capability');
	//Hide "Roles → Login Redirect".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-login-redirect');
	//Hide "Roles → Settings".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor');
	//Hide "Roles → Go Pro".
	remove_submenu_page('wpfront-user-role-editor-all-roles', 'wpfront-user-role-editor-go-pro');
}

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

Where do I put this code?