chore(charts): remove _helper.tpl

Author: duanhongyi

charts/storage/templates/_helper.tpl

@@ -6,5 +6,5 @@ metadata:
     heritage: drycc
 type: Opaque
 data:
-  accesskey: {{ include "common.secrets.lookup" (dict "secret" "storage-creds" "key" "accesskey" "defaultValue" (include "storage.accesskey" .) "context" $) }}
-  secretkey: {{ include "common.secrets.lookup" (dict "secret" "storage-creds" "key" "secretkey" "defaultValue" (include "storage.secretkey" .) "context" $) }}
+  accesskey: {{ include "common.secrets.lookup" (dict "secret" "storage-creds" "key" "accesskey" "defaultValue" (default (randAlphaNum 32) .Values.accesskey) "context" $) }}
+  secretkey: {{ include "common.secrets.lookup" (dict "secret" "storage-creds" "key" "secretkey" "defaultValue" (default (randAlphaNum 32) .Values.secretkey) "context" $) }}