How to Hide Job Manager With Structured Data Admin Menus

function plt_hide_df_job_manager_menus() {
	//Hide "Plugins → Install Plugins".
	remove_submenu_page('plugins.php', 'tgmpa-install-plugins');

	//Hide "Jobs".
	remove_menu_page('edit.php?post_type=df-job');
	//Hide "Jobs → All Jobs".
	remove_submenu_page('edit.php?post_type=df-job', 'edit.php?post_type=df-job');
	//Hide "Jobs → Add New".
	remove_submenu_page('edit.php?post_type=df-job', 'post-new.php?post_type=df-job');
	//Hide "Jobs → Job Categories".
	remove_submenu_page('edit.php?post_type=df-job', 'edit-tags.php?taxonomy=df-job-taxonomy&post_type=df-job');
}

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

Where do I put this code?