Clean up legacy support functions and unit tests #11
Description
Affected Component
openrelik-worker-containers
Description
Task openrelik-worker-containers.tasks.container_export relies on the functionalities provided by container-explorer (https://github.com/google/container-explorer) to export containers.
src/utils.py and tests/test_container_export.py may have supporting functions and unit tests from previous version which is not required.