Set configure-cloud-routes=false as default if no network plugin is used (#3788)

* Set configure-cloud-routes=false as default if no network plugin is used

As configure-cloud-routes default value is `true`, so it need to be set to `false` when not required to avoid error messages like:
"Couldn't reconcile node routes: error listing routes: unable to find route table for AWS cluster" 
on, for example, AWS installations that don't use cloud native routing.

* Update kube-controller-manager.manifest.j2

remove extra spaces

roles/kubernetes/master/templates/manifests/kube-controller-manager.manifest.j2

@@ -54,6 +54,8 @@ spec:
 {% endif %}
 {% if kube_network_plugin is defined and kube_network_plugin == 'cloud' %}
     - --configure-cloud-routes=true
+{% else %}
+    - --configure-cloud-routes=false
 {% endif %}
 {% if kube_network_plugin is defined and kube_network_plugin in ["cloud", "flannel", "canal", "cilium", "kube-router"] %}
     - --allocate-node-cidrs=true