readme: remove cn

Author: fengzero

README-CN.md

@@ -8,9 +8,6 @@
 [![Twitter](https://img.shields.io/badge/Follow-EMQ-1DA1F2?logo=twitter)](https://twitter.com/EMQTech)
 [![YouTube](https://img.shields.io/badge/Subscribe-EMQ-FF0000?logo=youtube)](https://www.youtube.com/channel/UC5FjR77ErAxvZENEWzQaO5Q)
 
-English | [简体中文](https://github.com/emqx/neuron/blob/main/README-CN.md)
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 Neuron is an Industrial IoT (IIoT) connectivity server for modern big data and AI/ML technology to leverage the power of Industrial 4.0. It supports one-stop access to dozens of industrial protocols and converts them into MQTT protocol and realize the interconnection between IIoT platforms and various industrial devices.
 
 ![neuron-overview](docs/pictures/neuron-final.png)