Remove ubuntu 2004 pro integration tests (#8353)

Author: cheeseandcereal

integration/tests/custom_ami/custom_ami_test.go

@@ -42,7 +42,6 @@ var (
 	customAMIAL2           string
 	customAMIAL2023        string
 	customAMIBottlerocket  string
-	customAMIUbuntuPro2004 string
 	customAMIUbuntuPro2204 string
 	customAMIUbuntuPro2404 string
 )
@@ -81,14 +80,6 @@ var _ = BeforeSuite(func() {
 	Expect(err).NotTo(HaveOccurred())
 	customAMIBottlerocket = *output.Parameter.Value
 
-	// retrieve Ubuntu Pro 20.04 AMI
-	input = &awsssm.GetParameterInput{
-		Name: aws.String(fmt.Sprintf("/aws/service/canonical/ubuntu/eks-pro/20.04/%s/stable/current/amd64/hvm/ebs-gp2/ami-id", params.Version)),
-	}
-	output, err = ssm.GetParameter(context.Background(), input)
-	Expect(err).NotTo(HaveOccurred())
-	customAMIUbuntuPro2004 = *output.Parameter.Value
-
 	// retrieve Ubuntu Pro 22.04 AMI
 	input = &awsssm.GetParameterInput{
 		Name: aws.String(fmt.Sprintf("/aws/service/canonical/ubuntu/eks-pro/22.04/%s/stable/current/amd64/hvm/ebs-gp2/ami-id", params.Version)),
@@ -183,28 +174,6 @@ var _ = Describe("(Integration) [Test Custom AMI]", func() {
 
 	})
 
-	Context("ubuntu-pro-2004 un-managed nodegroups", func() {
-
-		It("can create a working nodegroup which can join the cluster", func() {
-			By(fmt.Sprintf("using the following EKS optimised AMI: %s", customAMIUbuntuPro2004))
-			content, err := os.ReadFile(filepath.Join("testdata/ubuntu-pro-2004.yaml"))
-			Expect(err).NotTo(HaveOccurred())
-			content = bytes.ReplaceAll(content, []byte("<generated>"), []byte(params.ClusterName))
-			content = bytes.ReplaceAll(content, []byte("<generated-region>"), []byte(params.Region))
-			content = bytes.ReplaceAll(content, []byte("<generated-ami>"), []byte(customAMIUbuntuPro2204))
-			cmd := params.EksctlCreateCmd.
-				WithArgs(
-					"nodegroup",
-					"--config-file", "-",
-					"--verbose", "4",
-				).
-				WithoutArg("--region", params.Region).
-				WithStdin(bytes.NewReader(content))
-			Expect(cmd).To(RunSuccessfully())
-		})
-
-	})
-
 	Context("ubuntu-pro-2204 un-managed nodegroups", func() {
 
 		It("can create a working nodegroup which can join the cluster", func() {