remove donation

@@ -5,10 +5,6 @@
 
 SRS/2.0, [ZhouGuowen][release2]
 
-[![Donation](https://www.paypalobjects.com/webstatic/en_US/btn/btn_donate_92x26.png)](http://www.ossrs.net/srs.release/donation/index.html)
-[![Paypal](https://www.paypalobjects.com/webstatic/en_US/btn/btn_donate_pp_142x27.png)](http://www.ossrs.net/srs.release/donation/paypal.html)
-[![LinkedIn](http://s.c.lnkd.licdn.com/scds/common/u/img/webpromo/btn_liprofile_blue_80x15.png)](http://cn.linkedin.com/in/winlinvip)
-
 SRS定位是运营级的互联网直播服务器集群，追求更好的概念完整性和最简单实现的代码。<br/>
 SRS is industrial-strength live streaming cluster, for the best conceptual integrity and the simplest implementation. 
 
@@ -150,14 +146,6 @@ Please select your language:
 * [SRS 2.0 English][v2_EN_Home]
 * [SRS 2.0 Chinese][v2_CN_Home]
 
-## Donation
-
-Donation:<br/>
-[http://www.ossrs.net/srs.release/donation/index.html][donation1]
-
-Donations:<br/>
-[https://github.com/ossrs/srs/blob/develop/DONATIONS.txt][donations]
-
 ## System Requirements
 Supported operating systems and hardware:
 * All Linux , both 32 and 64 bits