Merge pull request #41231 from mrgiles/22505_update_container_volumes…

…_definition

Remove Docker volumes background reference

content/en/docs/concepts/storage/volumes.md

@@ -27,12 +27,6 @@ Familiarity with [Pods](/docs/concepts/workloads/pods/) is suggested.
 
 ## Background
 
-Docker has a concept of
-[volumes](https://docs.docker.com/storage/), though it is
-somewhat looser and less managed. A Docker volume is a directory on
-disk or in another container. Docker provides volume
-drivers, but the functionality is somewhat limited.
-
 Kubernetes supports many types of volumes. A {{< glossary_tooltip term_id="pod" text="Pod" >}}
 can use any number of volume types simultaneously.
 [Ephemeral volume](/docs/concepts/storage/ephemeral-volumes/) types have a lifetime of a pod,