[3.8] Remove conditionalization from Wiremock section

[rolfedh]

Cherry Picked from 8da8697
xref: #41977

Remove :no-deprecated-test-resource[] conditionalization from Wiremock and OidcTestClient content in response to review comments such as:

#41834 (comment)
#41834 (comment)
#41834 (comment)
#41834 (comment)

When all PRs are approved, we should be able to synch and publish the Security Guides for RHBQ 3.8.

[rolfedh]

When all PRs are approved and merged in the following order, I should finally be able to synch and publish the Security Guides for RHBQ 3.8:

1. [3.8] Apply QE feedback to community docs #41834
2. Remove conditionalization from Wiremock section #41977
3. [3.8] Remove conditionalization from Wiremock section #41980

[rolfedh]

I'm putting this PR on hold (Draft) for now.
I will rebase and re-cherry-pick this PR after #41834 merges.
This is necessary because this PR reverses some of the changes in 41834.
I'm doing this because it's my understanding that a best practice is to maintain matching or parallel sets of PRs for main and corresponding cherry-pick PRs for 3.8.

[quarkus-bot]

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It should be safe to merge provided you have a look at the other checks in the summary.

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