Removed promtail condition from Loki values check

General MR

Summary

Current BB values cause Loki to be deployed if Promtail is enabled, even when Loki itself is configured with enabled: false. There are use cases which require standalone deployments of Promtail, which makes this an undesirable behavior.

chart/templates/logging/loki/gitrepository.yaml

-{{- if and (not .Values.offline) (or .Values.loki.enabled .Values.promtail.enabled) }}
+{{- if and (not .Values.offline) .Values.loki.enabled }}
 apiVersion: source.toolkit.fluxcd.io/v1beta2
 kind: GitRepository
 metadata: