Revert "update clb-port-pool.md"

This reverts commit 24e7302.

Author: imroc

docs/clb-port-pool.md

@@ -659,7 +659,7 @@ metadata:
 
 以下是操作视频演示：
 
- <video src="https://image-host-1251893006.cos.ap-chengdu.myqcloud.com/videos/agones-clb-hostport-mapping.png)](https://image-host-1251893006.cos.ap-chengdu.myqcloud.com/videos/agones-clb-hostport-mapping.mp4"></video>
+https://image-host-1251893006.cos.ap-chengdu.myqcloud.com/videos/agones-clb-hostport-mapping.png)](https://image-host-1251893006.cos.ap-chengdu.myqcloud.com/videos/agones-clb-hostport-mapping.mp4
 
 ## 内网 CLB 绑 EIP 映射