Is there a way to permanently delete a container versions so NO residual remains while retaining the same GTM container ID?

Question

Typical Use Case:

• When setting up a new GTM container, we start by importing a container with a large number of custom javascript variables for initial setup and testing.
• These custom javascript variables need to be completely cleared from the container before handing off to the end user -- they contain internally proprietary code and internal API access points.
• Normally, after the deliverable GTM container version is created, we simply export the final version, import to a new container (creating a new empty container with a new container ID), update the GTM container ID in the app or website, and all is good.

Current Exception:

• We are currently working with an end user where changing / updating the GTM container ID will not be possible.

Question:

• Is there a way, via the GTM GUI, the GTM API, or some other reasonable route, to permanently delete container versions so NO residual remains from those versions (and they can not be undeleted), while retaining the same GTM container ID?

-- Previous research involved:

• searching [Google-Tag-Manager] here
• Searching Google Tag Manager Community.
• Searching Google GTM Developers
• Reading & Testing Container Versions: delete Note: This will delete the version, but the deleted version remains in the account and can easily be undeleted.