Remove job testing 2.7 release against k8s main

2.7 support is ending soon, and we do not intend to support Kubernetes
1.35 with it, so remove the job to free up some resources.

Signed-off-by: Nolan Brubaker <[email protected]>

Author: nrb

config/jobs/kubernetes-sigs/cluster-api-provider-aws/cluster-api-provider-aws-presubmits-release-2.7.yaml

@@ -193,51 +193,6 @@ presubmits:
       testgrid-dashboards: sig-cluster-lifecycle-cluster-api-provider-aws
       testgrid-tab-name: pr-conformance-release-2-7
       testgrid-num-columns-recent: '20'
-  # conformance test against kubernetes main branch with `kind` + cluster-api-provider-aws
-  - name: pull-cluster-api-provider-aws-e2e-conformance-with-ci-artifacts-release-2-7
-    cluster: eks-prow-build-cluster
-    branches:
-    # The script this job runs is not in all branches.
-    - ^release-2.7$
-    path_alias: "sigs.k8s.io/cluster-api-provider-aws"
-    always_run: false
-    optional: true
-    decorate: true
-    decoration_config:
-      timeout: 5h
-    max_concurrency: 1
-    labels:
-      preset-dind-enabled: "true"
-      preset-kind-volume-mounts: "true"
-      preset-service-account: "true"
-      preset-aws-ssh: "true"
-      preset-aws-credential: "true"
-    spec:
-      containers:
-        - image: gcr.io/k8s-staging-test-infra/kubekins-e2e:v20250714-70266d743a-1.30
-          command:
-            - "runner.sh"
-            - "./scripts/ci-conformance.sh"
-          env:
-            - name: BOSKOS_HOST
-              value: "boskos.test-pods.svc.cluster.local"
-            - name: AWS_REGION
-              value: "us-west-2"
-            - name: E2E_ARGS
-              value: "-kubetest.use-ci-artifacts"
-          securityContext:
-            privileged: true
-          resources:
-            requests:
-              cpu: 2
-              memory: "9Gi"
-            limits:
-              cpu: 2
-              memory: "9Gi"
-    annotations:
-      testgrid-dashboards: sig-cluster-lifecycle-cluster-api-provider-aws
-      testgrid-tab-name: pr-conformance-release-2-7-k8s-main
-      testgrid-num-columns-recent: '20'
   - name: pull-cluster-api-provider-aws-e2e-blocking-release-2-7
     cluster: eks-prow-build-cluster
     branches: