doc(README): remove affinity example

README.md

@@ -140,31 +140,6 @@ helm install prometheus-fail2ban-exporter prometheus-exporters/prometheus-fail2b
   --set 'grafana.enabled=true'
 ```
 
-#### Avoid deploying on same node / bare metal host as PostgresDB
-
-As a best practice, avoid running the fail2ban-exporter on the same node / bare-metal host as the PostgresDB. This is
-because if the fail2ban-exporter is running on the same node and this node fails, Prometheus can send an alert about the
-failure of the node or that the fail2ban-exporter cannot be reached. However, it is not possible to react based on the
-metrics that the fail2ban-exporter explicitly provides. Depending on the configuration of alerts, this may mean that the
-corresponding notifications are not sent to the right person or group of people.
-
-The following example prevent the fail2ban-exporter from running on nodes with a PostgresDB. The PostgresDB nodes has an
-additional label `database=fail2ban`. The configuration is carried out in `values.yaml`.
-
-```yaml
-deployment:
-  affinity:
-    nodeAffinity:
-      preferredDuringSchedulingIgnoredDuringExecution:
-      - weight: 100
-        preference:
-          matchExpressions:
-          - key: database
-            operator: NotIn
-            values:
-            - fail2ban
-```
-
 ## Parameters
 
 ### Global