update docs

docs/reference/operator_parameters.md

@@ -164,9 +164,8 @@ configuration they are grouped under the `kubernetes` key.
 * **enable_pod_disruption_budget**
   if disabled `MinAvailable` in the PDB's spec will be set to `0`. That means
   the PDB will get created anyway. The PDB is also relaxed when scaling down the
-  Postgres cluster to `"numberOfInstances": 0`. When scaling up or enabling this
-  configuration parameter delete the operator Pod to get the PDB synced. By
-  default PDB is enabled which results in `"MinAvailable": 1`
+  Postgres cluster to `"numberOfInstances": 0`. By default PDB is enabled which
+  results in `"MinAvailable": 1`.
 
 * **secret_name_template**
   a template for the name of the database user secrets generated by the