Kubernetes: remove useless and potentially confusing dekorate output

[snowdrop-bot]

Description
When using the Kubernetes extension, one will see the following (or similar output) during build:

[INFO] Initializing dekorate session.
[INFO] Default s2i build generator....
[INFO] Registering s2i handler!
[INFO] Registering s2i handler!
[INFO] Generating manifests.
[INFO] Processing kubernetes configuration.
[INFO] Processing openshift configuration.
[INFO] Processing s2i configuration.
[INFO] Closing dekorate session.

This not only doesn't provide any useful information but is potentially confusing, in particular when neither openshift nor s2i extensions are enabled.

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quarkusio#8798

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$upstream:8798$