Remove notion of v1 and v2 discovery services

[jackwaudby]

Removes all mention of v1 and v2 discovery services. We update all configurations and setup guides to reflect there is now one discovery service with 2 settings:

• dbms.cluster.endpoints
• dbms.cluster.discovery.resolver_type

[nick-giles-neo]

Noticed dbms.kubernetes.service_port_name still referenced.

[nick-giles-neo]

And dbms.kubernetes.discovery.v2.service_port_name is still in configuration-settings.adoc, and I think just needs removing.

[NataliaIvakina]

@jackwaudby, @nick-giles-neo, I found two more pages that need to be freed from mentioning discovery services v2 or v1:

• modules/ROOT/pages/configuration/ports.adoc
• modules/ROOT/pages/security/ssl-framework.adoc

Could you please take a look at them?

[jackwaudby]

@NataliaIvakina I've removed mentions of v1/v2 from those pages. In ssl-framework.adoc I came across other mentions of 5.x versions, I haven't removed them bu I guess they might need removing as well?

[NataliaIvakina]

In ssl-framework.adoc I came across other mentions of 5.x versions, I haven't removed them bu I guess they might need removing as well?

@jackwaudby, you're right, but let's do it in another PR.

[NataliaIvakina]

Looks good!
Test failures will be resolved in other PRs.
@nick-giles-neo, any comments?

[neo-technology-commit-status-publisher]

Thanks for the documentation updates.

The preview documentation has now been torn down - reopening this PR will republish it.

[nick-giles-neo]

Looks good! Test failures will be resolved in other PRs. @nick-giles-neo, any comments?

I'm happy!