docs(redis): delete links that do not exist

Author: duanhongyi

README.md

@@ -3,8 +3,6 @@
 
 Drycc (pronounced DAY-iss) Workflow is an open source Platform as a Service (PaaS) that adds a developer-friendly layer to any [Kubernetes](http://kubernetes.io) cluster, making it easy to deploy and manage applications on your own servers.
 
-![Drycc Graphic](https://getdrycc.blob.core.windows.net/get-drycc/drycc-graphic-small.png)
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 ## Description
 A Docker image for running standalone (not clustered) Redis on a Kubernetes cluster.