disable injecting unnecessary variables allowing access to k8s API

jsonnet/kube-prometheus/components/alertmanager.libsonnet

...et/kube-prometheus/components/blackbox-exporter.libsonnet

jsonnet/kube-prometheus/components/grafana.libsonnet

...t/kube-prometheus/components/kube-state-metrics.libsonnet

jsonnet/kube-prometheus/components/node-exporter.libsonnet

...t/kube-prometheus/components/prometheus-adapter.libsonnet

.../kube-prometheus/components/prometheus-operator.libsonnet

jsonnet/kube-prometheus/components/prometheus.libsonnet