ci: remove the rules for backport on unsupported versions

CSI version v3.3.0 and above are the supported versions now and this
patch also adjust the mergify rules according to that, ie the backport
rules are removed for all unsupported versions here.

Signed-off-by: Humble Chirammal <hchiramm@redhat.com>

.mergify.yml

@@ -89,164 +89,6 @@ pull_request_rules:
       merge: {}
       dismiss_reviews: {}
       delete_head_branch: {}
-  - name: backport patches to release v1.2.0 branch
-    conditions:
-      - base=devel
-      - label=backport-to-release-v1.2.0
-    actions:
-      backport:
-        branches:
-          - release-v1.2.0
-  # automerge backports if CI successfully ran
-  - name: automerge backport release-v1.2.0
-    conditions:
-      - author=mergify[bot]
-      - base=release-v1.2.0
-      - label!=DNM
-      - "#changes-requested-reviews-by=0"
-      - "#approved-reviews-by>=1"
-    actions:
-      merge: {}
-      dismiss_reviews: {}
-      delete_head_branch: {}
-  - name: backport patches to release-v2.0 branch
-    conditions:
-      - base=devel
-      - label=backport-to-release-v2.0
-    actions:
-      backport:
-        branches:
-          - release-v2.0
-  # automerge backports if CI successfully ran
-  - name: automerge backport release-v2.0
-    conditions:
-      - author=mergify[bot]
-      - base=release-v2.0
-      - label!=DNM
-      - "#changes-requested-reviews-by=0"
-      - "#approved-reviews-by>=2"
-      - "approved-reviews-by=@ceph/ceph-csi-contributors"
-      - "approved-reviews-by=@ceph/ceph-csi-maintainers"
-    actions:
-      merge: {}
-      dismiss_reviews: {}
-      delete_head_branch: {}
-  - name: backport patches to release-v2.1 branch
-    conditions:
-      - base=devel
-      - label=backport-to-release-v2.1
-    actions:
-      backport:
-        branches:
-          - release-v2.1
-  # automerge backports if CI successfully ran
-  - name: automerge backport release-v2.1
-    conditions:
-      - author=mergify[bot]
-      - base=release-v2.1
-      - label!=DNM
-      - "#changes-requested-reviews-by=0"
-      - "#approved-reviews-by>=2"
-      - "approved-reviews-by=@ceph/ceph-csi-contributors"
-      - "approved-reviews-by=@ceph/ceph-csi-maintainers"
-    actions:
-      merge: {}
-      dismiss_reviews: {}
-      delete_head_branch: {}
-  - name: backport patches to release-v3.0 branch
-    conditions:
-      - base=devel
-      - label=backport-to-release-v3.0
-    actions:
-      backport:
-        branches:
-          - release-v3.0
-  # automerge backports if CI successfully ran
-  - name: automerge backport release-v3.0
-    conditions:
-      - author=mergify[bot]
-      - base=release-v3.0
-      - label!=DNM
-      - "#changes-requested-reviews-by=0"
-      - "#approved-reviews-by>=2"
-      - "approved-reviews-by=@ceph/ceph-csi-contributors"
-      - "approved-reviews-by=@ceph/ceph-csi-maintainers"
-    actions:
-      merge: {}
-      dismiss_reviews: {}
-      delete_head_branch: {}
-  - name: backport patches to release-v3.1 branch
-    conditions:
-      - base=devel
-      - label=backport-to-release-v3.1
-    actions:
-      backport:
-        branches:
-          - release-v3.1
-  # automerge backports if CI successfully ran
-  - name: automerge backport release-v3.1
-    conditions:
-      - author=mergify[bot]
-      - base=release-v3.1
-      - label!=DNM
-      - "#changes-requested-reviews-by=0"
-      - "#approved-reviews-by>=2"
-      - "approved-reviews-by=@ceph/ceph-csi-contributors"
-      - "approved-reviews-by=@ceph/ceph-csi-maintainers"
-      - "status-success=multi-arch-build"
-      - "status-success=commitlint"
-      - "status-success=ci/centos/mini-e2e-helm/k8s-1.20"
-      - "status-success=ci/centos/mini-e2e-helm/k8s-1.21"
-      - "status-success=ci/centos/mini-e2e-helm/k8s-1.22"
-      - "status-success=ci/centos/mini-e2e/k8s-1.20"
-      - "status-success=ci/centos/mini-e2e/k8s-1.21"
-      - "status-success=ci/centos/mini-e2e/k8s-1.22"
-      - "status-success=ci/centos/upgrade-tests-cephfs"
-      - "status-success=ci/centos/upgrade-tests-rbd"
-      - "status-success=DCO"
-    actions:
-      merge: {}
-      dismiss_reviews: {}
-      delete_head_branch: {}
-  - name: backport patches to release-v3.2 branch
-    conditions:
-      - base=devel
-      - label=backport-to-release-v3.2
-    actions:
-      backport:
-        branches:
-          - release-v3.2
-  # automerge backports if CI successfully ran
-  - name: automerge backport release-v3.2
-    conditions:
-      - author=mergify[bot]
-      - base=release-v3.2
-      - label!=DNM
-      - "#approved-reviews-by>=2"
-      - "approved-reviews-by=@ceph/ceph-csi-contributors"
-      - "approved-reviews-by=@ceph/ceph-csi-maintainers"
-      - "status-success=codespell"
-      - "status-success=multi-arch-build"
-      - "status-success=go-test"
-      - "status-success=golangci-lint"
-      - "status-success=gosec"
-      - "status-success=commitlint"
-      - "status-success=mod-check"
-      - "status-success=lint-extras"
-      - "#changes-requested-reviews-by=0"
-      - "status-success=ci/centos/mini-e2e-helm/k8s-1.20"
-      - "status-success=ci/centos/mini-e2e-helm/k8s-1.21"
-      - "status-success=ci/centos/mini-e2e-helm/k8s-1.22"
-      - "status-success=ci/centos/mini-e2e/k8s-1.20"
-      - "status-success=ci/centos/mini-e2e/k8s-1.21"
-      - "status-success=ci/centos/mini-e2e/k8s-1.22"
-      - "status-success=ci/centos/upgrade-tests-cephfs"
-      - "status-success=ci/centos/upgrade-tests-rbd"
-      - "status-success=DCO"
-    actions:
-      merge: {}
-      dismiss_reviews: {}
-      delete_head_branch: {}
   - name: backport patches to release-v3.3 branch
     conditions:
       - base=devel