cloud orchestration: remove stackstorm (already listed at https://landscape.cncf.io/card-mode?license=open-source)

README.md

@@ -179,7 +179,6 @@ _See also: [Cloud Native Software Landcscape](https://landscape.cncf.io/card-mod
 - [CloudSlang](http://www.cloudslang.io/) - Flow-based orchestration tool for managing deployed applications, with Docker capabilities. ([Source Code](https://github.com/CloudSlang/score))
 - [Genesis](https://github.com/starkandwayne/genesis) - A template framework for multi-environment BOSH deployments.
 - [Overcast](http://andrewchilds.github.io/overcast/) - Deploy VMs across different cloud providers, and run commands and scripts across any or all of them in parallel via SSH. ([SOurce Code](https://github.com/andrewchilds/overcast))
-- [StackStorm](https://stackstorm.com/) - Event Driven Operations and ChatOps platform for infrastructure management. Written in Python.
 - [Terraform](https://www.terraform.io/) - Terraform works with many cloud providers and creates infrastructure from code.