A few cleanups (remove duplicated env vars & unnecessary comments) on yaml files.

cluster/addons/calico-policy-controller/calico-node-daemonset.yaml

@@ -41,8 +41,6 @@ spec:
               value: "none"
             - name: DATASTORE_TYPE
               value: "kubernetes"
-            - name: FELIX_TYPHAK8SSERVICENAME
-              value: "calico-typha"
             - name: FELIX_DEFAULTENDPOINTTOHOSTACTION
               value: "ACCEPT"
             - name: FELIX_HEALTHENABLED
@@ -55,8 +53,6 @@ spec:
               value: "info"
             - name: FELIX_PROMETHEUSMETRICSENABLED
               value: "true"
-            - name: FELIX_HEALTHENABLED
-              value: "true"
             - name: FELIX_REPORTINGINTERVALSECS
               value: "0"
             - name: FELIX_TYPHAK8SSERVICENAME
@@ -163,11 +159,9 @@ spec:
         - name: cni-net-dir
           hostPath:
             path: /etc/cni/net.d
-        # Used to
         - name: var-run-calico
           hostPath:
             path: /var/run/calico
-        # Used to
         - name: var-lib-calico
           hostPath:
             path: /var/lib/calico