Set LicenseToken field only when version is greater than v0.22

[rahulbabu95]

Issue #, if available:
#2855

Description of changes:
LicenseToken field on cluster spec will be introduced in 'v0.22.0'. At present since we set this field when initialize the end-to-end test object it gets set even on the previous minor versions where it's not intended to. This change sets this field only on main, or if the version is higher than 'v0.22.0'. This change also cleans up some old cleanup code in our e2e framework that was used only during way old releases such as 'v0.6.1' and is no longer needed.

Currently see the upgrade from latest minor version tests failing with the below error:

cluster.go:939: Running shell command [ /usr/bin/sh -c bin/v0.21.6/eksctl-anywhere create cluster -f main-i-09dec-53a064b/main-i-09dec-53a064b-eks-a.yaml -v 6 ]
Error: the cluster config file provided is invalid: unable to parse main-i-09dec-53a064b/main-i-09dec-53a064b-eks-a.yaml file: error unmarshaling JSON: while decoding JSON: json: unknown field "licenseToken"
cluster.go:946: Command failed, scanning output for error
cluster.go:966: Command bin/v0.21.6/eksctl-anywhere [create cluster -f main-i-09dec-53a064b/main-i-09dec-53a064b-eks-a.yaml -v 6] failed with error: exit status 255: Error: the cluster config file provided is invalid: unable to parse main-i-09dec-53a064b/main-i-09dec-53a064b-eks-a.yaml file: error unmarshaling JSON: while decoding JSON: json: unknown field "licenseToken"

Testing (if applicable):
Verified that both simple flow and upgrade from minor flow works: https://tiny.amazon.com/14se0krtr/IsenLink

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 72.35%. Comparing base (2ec757c) to head (cb34257).
Report is 3 commits behind head on main.

Additional details and impacted files

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##             main    #9264   +/-   ##
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  Coverage   72.35%   72.35%           
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  Files         587      587           
  Lines       46140    46140           
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  Hits        33385    33385           
  Misses      11006    11006           
  Partials     1749     1749           

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[sp1999]

/lgtm

[2ez4szliu]

/approve

[eks-distro-bot]

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