/**
 * Delete last_activity data for the user when the user is deleted.
 *
 * @since 1.0.0
 *
 * @param int $user_id The user ID for the user to delete usermeta for.
 */
function bp_core_remove_data($user_id)
{
    // Remove last_activity data.
    BP_Core_User::delete_last_activity($user_id);
    // Flush the cache to remove the user from all cached objects.
    wp_cache_flush();
}
 /**
  * @group last_activity
  */
 public function test_delete_last_activity()
 {
     $u = $this->factory->user->create();
     $time = bp_core_current_time();
     BP_Core_User::update_last_activity($u, $time);
     $a = BP_Core_User::get_last_activity($u);
     $found = isset($a[$u]['date_recorded']) ? $a[$u]['date_recorded'] : '';
     $this->assertEquals($time, $found);
     BP_Core_User::delete_last_activity($u);
     $a = BP_Core_User::get_last_activity($u);
     $found = isset($a[$u]['date_recorded']) ? $a[$u]['date_recorded'] : '';
     $this->assertEquals('', $found);
 }