vicare: Remove unsupported scan_interval from docs (home-assistant#24832

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fixes undefined

source/_integrations/vicare.markdown

@@ -54,7 +54,7 @@ The Viessmann API is rate-limited. If you exceed one of the limits below you wil
 - Limit 1: 120 calls for a time window of 10 minutes
 - Limit 2: 1450 calls for a time window of 24 hours
 
-The default `scan_interval` of 60 seconds will work within these limits. Note however that any additional requests to the API, e.g., by setting the temperature via the integration but also by interacting with the ViCare app also counts into those limits. It is therefore advised to adjust the scan_interval to your usage scenario.
+The integration polls the Viessmann API every 60 seconds and will work within these limits. Note however that any additional requests to the API, e.g., by setting the temperature via the integration but also by interacting with the ViCare app also counts into those limits.
 
 ## Climate