E2E Fixes + ACC Removal

[ChristianAtDell]

Description

The primary goal of this PR is to get PowerFlex-related end-to-end testing scenarios passing with the latest code changes from the main branch. In addition, this branch includes @anathoodell effort to remove APEX Connectivity Client, as the testing code had a cross-dependency with that effort and the two branches were merged.

Previous PR for this work was located here: there were some issues with commit signing that blocked merge, so they have been brought to a new branch with a squash.

GitHub Issues

List the GitHub issues impacted by this PR:

GitHub Issue #
dell/csm#1507

Checklist:

• I have performed a self-review of my own code to ensure there are no formatting, vetting, linting, or security issues
• I have verified that new and existing unit tests pass locally with my changes
• I have not allowed coverage numbers to degenerate
• I have maintained at least 90% code coverage
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have maintained backward compatibility

How Has This Been Tested?

All tests are run using the tests/e2e//run-e2e-test.sh --pflex command with special provisions made for a few that are still in alpha release. All tests are passed and logs with configurations are provided internally.

[jooseppi-luna]

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