Remove deprecated tls-ca-file flag

- kubernetes/kubernetes#58968

[#158183539]

Signed-off-by: Urvashi Reddy <ureddy@pivotal.io>

Author: SemanticallyNull

jobs/kube-apiserver/templates/config/bpm.yml.erb

@@ -62,7 +62,6 @@ processes:
   - --service-account-lookup
   - --service-cluster-ip-range=10.100.200.0/24
   - --service-node-port-range=30000-32767
-  - --tls-ca-file=/var/vcap/jobs/kube-apiserver/config/kubernetes-ca.pem
   - --tls-cert-file=/var/vcap/jobs/kube-apiserver/config/kubernetes.pem
   - --tls-private-key-file=/var/vcap/jobs/kube-apiserver/config/kubernetes-key.pem
   - --token-auth-file=/var/vcap/jobs/kube-apiserver/config/tokens.csv