Update powered-by.md (#2903)

受leader要求，移除公司名单。

docs/powered-by.md

@@ -55,7 +55,6 @@ or providing commercial products including Apache SkyWalking.
 1. Moji 墨叽（深圳）科技有限公司 https://www.mojivip.com
 1. Mypharma.com 北京融贯电子商务有限公司 https://www.mypharma.com
 1. Osacart in WeChat app 广州美克曼尼电子商务有限公司
-1. Payeco.com 易联支付有限公司  https://www.payeco.com
 1. Primeton.com 普元信息技术股份有限公司 http://www.primeton.com 
 1. qiniu.com 七牛云 http://qiniu.com 
 1. Qingyidai.com 轻易贷 https://www.qingyidai.com/
@@ -111,9 +110,6 @@ Use multiple language agents from SkyWalking and its ecosystem, including SkyWal
 ## Primeton
 Integrated in Primeton EOS PLATFORM 8, which is a commercial micro-service platform.
 
-## Payeco
-Use SkyWalking in a refactoring environment based on Kubernetes and Spring Boot.
-
 ## Qiniu Cloud
 Provide a customized version SkyWalking agent. It could provide distributed tracing and integrated in its intelligence log management platform.