code: public ProviderGroup removeAll(List<ProviderInfo> providerInfos) {
          if (CommonUtils.isEmpty(providerInfos)) {
              return this;
          }
          ConcurrentHashSet<ProviderInfo> tmp = new ConcurrentHashSet<ProviderInfo>(this.providerInfos);
          tmp.removeAll(providerInfos); // 排重
          this.providerInfos = new ArrayList<ProviderInfo>(tmp);
          return this;
      }
docs: 删除多个服务列表
  
  @param providerInfos 要删除的服务分组列表
  @return 当前服务分组 provider group