Remove arch from flannel image tag (#6765)

The 0d0cc8cf change creates several
DaemonSets to cover the Flannel CNI installation for different CPU
architectures. This change removes the unnecessary architecture value
from the docker tag value.

Signed-off-by: Victor Morales <v.morales@samsung.com>

roles/download/defaults/main.yml

@@ -388,7 +388,7 @@ kube_proxy_image_repo: "{{ kube_image_repo }}/kube-proxy"
 etcd_image_repo: "{{ quay_image_repo }}/coreos/etcd"
 etcd_image_tag: "{{ etcd_version }}{%- if image_arch != 'amd64' -%}-{{ image_arch }}{%- endif -%}"
 flannel_image_repo: "{{ quay_image_repo }}/coreos/flannel"
-flannel_image_tag: "{{ flannel_version }}{%- if image_arch != 'amd64' -%}-{{ image_arch }}{%- endif -%}"
+flannel_image_tag: "{{ flannel_version }}"
 calico_node_image_repo: "{{ docker_image_repo }}/calico/node"
 calico_node_image_tag: "{{ calico_version }}"
 calico_cni_image_repo: "{{ docker_image_repo }}/calico/cni"