helm: remove promtail sa setting (#160)

Signed-off-by: Xiang Dai <764524258@qq.com>

production/helm/templates/promtail/_helpers.tpl

@@ -36,7 +36,7 @@ Create the name of the service account
 */}}
 {{- define "promtail.serviceAccountName" -}}
 {{- if .Values.serviceAccount.create -}}
-    {{ default (include "promtail.fullname" .) .Values.serviceAccount.name }}
+    {{ default (include "loki.fullname" .) .Values.serviceAccount.name }}
 {{- else -}}
     {{ default "default" .Values.serviceAccount.name }}
 {{- end -}}

production/helm/templates/promtail/serviceaccount.yaml

-{{- if .Values.serviceAccount.create }}
-apiVersion: v1
-kind: ServiceAccount
-metadata:
-  labels:
-    app: {{ template "promtail.name" . }}
-    chart: {{ .Chart.Name }}-{{ .Chart.Version }}
-    heritage: {{ .Release.Service }}
-    release: {{ .Release.Name }}
-  name: {{ template "promtail.serviceAccountName" . }}
-{{- end }}
\ No newline at end of file