unRegister (cgid, name) {
    if (cgid._pluginInfoId) {
      cgid = cgid._pluginInfoId
    }
    name = name.toLowerCase()
    try {
      const plugin = this.pluginGroup[cgid]._plugins[name]
      if (plugin) {
        plugin.pluginName && plugin.__destroy()
        delete this.pluginGroup[cgid]._plugins[name]
      }
    } catch (e) {
      console.error(`[unRegister:${name}] cgid:[${cgid}] error`, e)
    }
  }
Unregister a plugin from player instance
@param { string } cgid
@param { string } name