Simplify condition comparison

Author: zaklawrencea

cluster/manifests/audittrail-adapter/credentials.yaml

@@ -1,4 +1,4 @@
-{{- if or (ne .Cluster.ConfigItems.audittrail_url "") (ne .Cluster.ConfigItems.audittrail_nakadi_url "") }}
+{{- if or .Cluster.ConfigItems.audittrail_url .Cluster.ConfigItems.audittrail_nakadi_url }}
 apiVersion: "zalando.org/v1"
 kind: PlatformCredentialsSet
 metadata:
@@ -11,11 +11,11 @@ spec:
    token_version: v2
    tokens:
 {{- end }}
-{{- if ne .Cluster.ConfigItems.audittrail_url "" }}
+{{- if .Cluster.ConfigItems.audittrail_url }}
      audittrail:
        privileges: []
 {{- end }}
-{{- if ne .Cluster.ConfigItems.audittrail_nakadi_url "" }}
+{{- if .Cluster.ConfigItems.audittrail_nakadi_url }}
      nakadi:
        privileges:
        - com.zalando::nakadi.event_stream.write