k8s: Remove duplicate namespace info message
k8s: Remove duplicate namespace info message

Any non-standard namespace setting is printed at the beginning:
```
Feb 22 20:25:58 k8s1 cilium-agent[13012]: level=info msg="  --k8s-namespace=''" subsys=daemon
```

No need to print it again.

Related: #6776

Signed-off-by: Thomas Graf <5f50a84c1fa3bcff146405017f36aec1a10a9e38@cilium.io>

tklauser/cilium,tgraf/cilium,tgraf/cilium,tklauser/cilium,tgraf/cilium,michi-covalent/cilium,tklauser/cilium,cilium-team/cilium,tgraf/cilium,tklauser/cilium,michi-covalent/cilium,cilium/cilium,cilium/cilium,tgraf/cilium,cilium/cilium,michi-covalent/cilium,cilium/cilium,tklauser/cilium,cilium-team/cilium,cilium/cilium,michi-covalent/cilium,tgraf/cilium,michi-covalent/cilium