Remove default-ssl-certificate.md (the content is already in tls.md)
Remove default-ssl-certificate.md (the content is already in tls.md)

caicloud/ingress,kubernetes/ingress-nginx,canhnt/ingress,kubernetes/ingress-nginx,caicloud/ingress,canhnt/ingress,kubernetes/ingress-nginx,kubernetes/ingress-nginx,canhnt/ingress,kubernetes/ingress-nginx,caicloud/ingress,aledbf/ingress-nginx,aledbf/ingress-nginx,caicloud/ingress,canhnt/ingress,aledbf/ingress-nginx,aledbf/ingress-nginx