[Major] remove audience-manager

[purplecabbage]

Description

Related Issue

Motivation and Context

How Has This Been Tested?

Screenshots (if appropriate):

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• I have signed the Adobe Open Source CLA.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (075864c) 100.00% compared to head (4015bd9) 100.00%.

Additional details and impacted files

@@            Coverage Diff            @@
##            master       #41   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            1         1           
  Lines           10         9    -1     
=========================================
- Hits            10         9    -1     

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[MichaelGoberling]

My Audit reveals one final reference: https://github.com/adobe/aio-sdk/blob/master/.github/workflows/prerelease.yml#L16

LGTM otherwise

[shazron]

I think we can do another 4.x patch release, then release this as 5.x.
Need to fix the issue that Michael commented on first though.

[purplecabbage]

Checks have passed but they are not reported back here ...?