Drop calico 3.15 (#7545)

* calico: drop support for version 3.15

* drop check for calico version >= 3.3, we are at 3.16 minimum now

* we moved to calico 3.16+ so we can default to /opt/cni/bin/install

roles/network_plugin/calico/tasks/install.yml

@@ -179,7 +179,6 @@
   when:
     - inventory_hostname == groups['kube_control_plane'][0]
     - calico_conf_ipv6.stdout is defined and calico_conf_ipv6.stdout == "0"
-    - calico_version is version("v3.3.0", ">=")
     - enable_dual_stack_networks | bool
 
 - name: Populate Service External IPs

roles/network_plugin/calico/templates/calico-node.yml.j2

@@ -64,7 +64,7 @@ spec:
         # and CNI network config file on each node.
         - name: install-cni
           image: {{ calico_cni_image_repo }}:{{ calico_cni_image_tag }}
-          command: ["{{ (calico_version is version('v3.16.0', '<'))|ternary('/install-cni.sh','/opt/cni/bin/install') }}"]
+          command: ["/opt/cni/bin/install"]
           env:
             # Name of the CNI config file to create.
             - name: CNI_CONF_NAME