Simplify Thoth part of the toolchain

[fridex]

Is your feature request related to a problem? Please describe.

As suggested by @frenzymadness, our tooling could be simplified. Instead of creating a patch, we could maintain our own assemble script and propagate it to containers.

Describe the solution you'd like

• substitute the assemble script and replace it with Thoth specific assemble script that is copied to the container (instead of having a patch which might be harder to maintain across changes in S2I tooling)
• verify that Thoth s2i containers work properly with the new Thoth specific assemble script
• check what are the differences across Thoth based S2I container images and what should be maintained on our end to have a proper compatibility layer available

[codificat]

/triage accepted
/priority important-longterm

worth checking the impact on ODH

[sesheta]

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Mark the issue as fresh with /remove-lifecycle stale.
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/lifecycle stale

[fridex]

/remove-lifecycle stale

This might be easy to achieve and can reduce maintenance cost.