fips: remove the enable-fips service

[tormath1]

it's not required to do so since gentoo/gentoo@f4cbfc0. This works on OpenSSL >= 3.0.8 so with the LTS-2023 it still requires the enable-fips service.

Testing done

• misc: add fips test flatcar/mantle#459

[krnowak]

I'm wondering if this needs a separate section for LTS then as we don't have versioned docs, do we?

[tormath1]

@krnowak already got some similar situation here: #328 (comment) - as a trade-off we can mention something like:

For Flatcar LTS, you might need to generate the FIPS configuration file with https://www.openssl.org/docs/man3.0/man1/openssl-fipsinstall.html#EXAMPLES

[krnowak]

@krnowak already got some similar situation here: #328 (comment) - as a trade-off we can mention something like:

For Flatcar LTS, you might need to generate the FIPS configuration file with https://www.openssl.org/docs/man3.0/man1/openssl-fipsinstall.html#EXAMPLES

Sounds good.

[krnowak]

Small nitpick, otherwise looks godd.

[krnowak]

Suggested change

	NOTE: For Flatcar LTS-2023 (with OpenSSL < 3.0.8), it's still required to generate the fipsmodule configuration see upstream [documentation][openssl-fipsinstall].
	NOTE: For Flatcar LTS-2023 (with OpenSSL < 3.0.8), it's still required to generate the fipsmodule configuration, see upstream [documentation][openssl-fipsinstall] on how to do it.

[tormath1]

Thanks!