Revert "Add v0.22 to doc site versions config"

[2ez4szliu]

Issue #, if available:

Description of changes:
Reverts PR Add v0.22 to doc site versions config https://github.com/aws/eks-anywhere/pull/9344/files

Testing (if applicable):

Documentation added/planned (if applicable):

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[2ez4szliu]

/approve

[eks-distro-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: 2ez4szliu

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[sp1999]

/lgtm

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.45%. Comparing base (deb58e7) to head (522b69c).
Report is 1 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #9349   +/-   ##
=======================================
  Coverage   69.45%   69.45%           
=======================================
  Files         672      672           
  Lines       49357    49357           
=======================================
  Hits        34283    34283           
  Misses      13288    13288           
  Partials     1786     1786           

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