docs/podman-rm.1.md: delete "Not yet implemented" msg for volume removal
Since this feature appears to be implemented, remove the qualifier.
@@ -32,7 +32,7 @@ The latest option is not supported on the remote client.
**--volumes, -v**
-Remove the volumes associated with the container. (Not yet implemented)
+Remove the volumes associated with the container.
## EXAMPLE
Remove a container by its name *mywebserver*
