Remove auth secret

[Sahiba-Gupta]

This PR will remove any code in the driver that requires the auth secret should be updated/removed.

Github Issue:

dell/csm#1614

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
• I have executed the relevant end-to-end test scenarios

I have tested it locally by deploying driver:

[root@master-1-CSfRuoF2t9HI2 csm-operator]# k get pods -n powermax
NAME                                   READY   STATUS    RESTARTS     AGE
powermax-controller-6dcf8b8d8f-n5xff   6/6     Running   4 (2s ago)   7s
powermax-node-c6msh                    2/2     Running   0            7s
powermax-node-gzgvp                    2/2     Running   0            7s
powermax-node-tpzzv                    2/2     Running   0            7s

[hoppea2]

@Sahiba-Gupta please link GitHub feature and review the checkboxes about maintaining unit test coverage etc.

[Sahiba-Gupta]

@Sahiba-Gupta please link GitHub feature and review the checkboxes about maintaining unit test coverage etc.

Done