Update e2e tests to use new ubuntu images

[ahreehong]

Description of changes: Updated baremetal e2e tests to use custom Ubuntu images and removed redundant test case.

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[codecov[bot]]

Codecov Report

Merging #2866 (22ab06e) into main (d0a42e7) will increase coverage by 0.76%. The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2866      +/-   ##
==========================================
+ Coverage   60.49%   61.26%   +0.76%     
==========================================
  Files         319      323       +4     
  Lines       26308    26258      -50     
==========================================
+ Hits        15916    16086     +170     
+ Misses       9081     8895     -186     
+ Partials     1311     1277      -34     

Impacted Files	Coverage Δ
...g/api/v1alpha1/cloudstackdatacenterconfig_types.go	55.81% <0.00%> (-9.26%)	:arrow_down:
pkg/api/v1alpha1/cluster_webhook.go	81.88% <0.00%> (-2.59%)	:arrow_down:
pkg/api/v1alpha1/cluster.go	58.87% <0.00%> (-1.74%)	:arrow_down:
pkg/curatedpackages/bundle.go	61.25% <0.00%> (-0.95%)	:arrow_down:
pkg/dependencies/factory.go	65.21% <0.00%> (-0.37%)	:arrow_down:
controllers/resource/fetcher.go	40.11% <0.00%> (-0.24%)	:arrow_down:
pkg/providers/cloudstack/cloudstack.go	68.64% <0.00%> (-0.04%)	:arrow_down:
pkg/config/config.go	100.00% <0.00%> (ø)
pkg/api/v1alpha1/awsiamconfig.go	76.92% <0.00%> (ø)
pkg/providers/vsphere/vsphere.go	64.97% <0.00%> (ø)
... and 25 more

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[gwesterfieldjr]

/lgtm

[gwesterfieldjr]

/approve /approved

[eks-distro-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gwesterfieldjr

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[ahreehong]

/cherry-pick release-0.11

[eks-distro-pr-bot]

@ahreehong: new pull request created: #2983

In response to this:

/cherry-pick release-0.11

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