Remove helm NicClusterPolicy install from docs

[killianmuldoon]

Remove the instructions for installing the NicClusterPolicy through helm from the documentation and replace it with a two step process that involves applying the NicClusterPolicy directly using kubectl.

This feature is deprecated and is going to be removed from the Network Operator helm chart in a future release

[tobiasgiese]

Suggested change

	.. parsed-literal::
	.. code-block:: yaml

shouldn't this be rather a yaml code block? And all other occurrences

[killianmuldoon]

Unfortunately no - as we need to substitute the version numbers here. That functionality doesn't work with code-block. So here we're trading off the variable substitution for syntax highlighting.

[killianmuldoon]

#28

[tobiasgiese]

Okay, wasn't aware of that. Thanks

[noama-nv]

@rollandf @adrianchiris please add me as reviewer for upcoming doc changes.

here few comments we should get address in upcoming changed:

• Adjust doc to NFD install externally to Network Operator.
• We set NV IPAM as our default IPAM but documentation still vastly refer to whereabouts

[adrianchiris]

@noama-nv please star the project to get notifications. you can then get notified on changes.

[noama-nv]

@adrianchiris i am, but in this case it was reviewed and merge at the speed of light :)
think you should include me in default reviewers