Use default flannel images for tests

Author: mkl262

inventory/sample/group_vars/k8s_cluster/k8s-net-flannel.yml

@@ -1,3 +1,4 @@
+---
 # see roles/network_plugin/flannel/defaults/main.yml
 
 ## interface that should be used for flannel operations

roles/network_plugin/flannel/defaults/main.yml

@@ -28,6 +28,7 @@ flannel_cpu_limit: 300m
 flannel_memory_requests: 64M
 flannel_cpu_requests: 150m
 
+#list of architecture specific Daemonsets to be created, only amd64 by default.
 flannel_daemonset_arch_list:
   - amd64
   # - arm64

tests/common_vars.yml

@@ -31,6 +31,3 @@ netcheck_agent_image_repo: "{{ quay_image_repo }}/kubespray/k8s-netchecker-agent
 netcheck_server_image_repo: "{{ quay_image_repo }}/kubespray/k8s-netchecker-server"
 
 nginx_image_repo: "{{ quay_image_repo }}/kubespray/nginx"
-
-flannel_image_repo: "{{ quay_image_repo }}/kubespray/flannel"
-flannel_init_image_repo: "{{ quay_image_repo }}/kubespray/flannel-cni-plugin"