Remove Container Scanning kubernetes workaround

What does this MR do?

This MR removes the workaround that was added in !16342 (merged) and discussed in this thread.

This workaround can be removed because the new container scanning tool follows the standard analyzer interface specified by the Analyzers Common Library.

This MR requires that gitlab-org/security-products/analyzers/klar!16 (merged) is merged first.

Closes #207451 (closed)

Screenshots

Does this MR meet the acceptance criteria?

Conformity

• Changelog entry
• Documentation (if required)
• Code review guidelines
• Merge request performance guidelines
• Style guides
• Database guides
• Separation of EE specific content

Availability and Testing

• Review and add/update tests for this feature/bug. Consider all test levels. See the Test Planning Process.
  • Kubernetes docker executor tested in https://gitlab.com/adamcohen/issue-34074/-/jobs/439236969
  • Docker executor tested in https://gitlab.com/gitlab-org/security-products/tests/container-scanning/pipelines/118396397
• Tested in all supported browsers

Security

If this MR contains changes to processing or storing of credentials or tokens, authorization and authentication methods and other items described in the security review guidelines:

• Label as security and @ mention @gitlab-com/gl-security/appsec
• The MR includes necessary changes to maintain consistency between UI, API, email, or other methods
• Security reports checked/validated by a reviewer from the AppSec team