use smaller windows httpd image for e2e tests

[nader-ziada]

What type of PR is this?

/kind failing-test

What this PR does / why we need it:

• use smaller windows httpd image for e2e tests

Which issue(s) this PR fixes (optional, in fixes #<issue number>(, fixes #<issue_number>, ...) format, will close the issue(s) when PR gets merged):
Fixes #

Special notes for your reviewer:

Please confirm that if this PR changes any image versions, then that's the sole change this PR makes.

TODOs:

• squashed commits
• includes documentation
• adds unit tests

Release note:

update windows httpd image in e2e test

[devigned]

/lgtm
/assign @jsturtevant

[jsturtevant]

I believe the tests are already using the httpd image and the extra code was left in place but in general in favor of cleaning up unused code. I put some of this in place as we will need a way to run different images for different versions of Windows OS as we add more tests/versions

cluster-api-provider-azure/test/e2e/azure_lb.go

Lines 81 to 84 in 6a80ae3

	windowsVersion, err := node.GetWindowsVersion(clientset)
	Expect(err).NotTo(HaveOccurred())
	iisImage := windows.GetWindowsImage(windows.Httpd, windowsVersion)
	webDeployment.SetImage(deploymentName, iisImage)

[devigned]

/approve

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