v-m: Do not scrape/alert on Graylog

Graylog is down because Elasticsearch corrupted itself again, and this
time, I'm just not going to bother fixing it.  I practically never use
it anymore anyway, and I want to migrate to Grafana Loki, so now seems
like a good time to just get rid of it.

victoria-metrics/scrape.yml

@@ -186,16 +186,6 @@ scrape_configs:
   - targets:
     - homeassistant.pyrocufflink.blue
 
-- job_name: graylog
-  scheme: https
-  metrics_path: /api/plugins/org.graylog.plugins.metrics.prometheus/metrics
-  basic_auth:
-    username: %{SCRAPE_GRAYLOG_TOKEN}
-    password: token
-  static_configs:
-  - targets:
-    - graylog.pyrocufflink.blue:443
-
 - job_name: gitea
   scheme: https
   static_configs: