chore: remove deprecated VW, Audi, Cupra and Seat vehicle implementations (#30549)

Author: andig

templates/definition/vehicle/seat.yaml

@@ -7,6 +7,7 @@ params:
   - preset: vehicle-base
   - preset: vehicle-climater
 render: |
-  type: seat
+  type: drivesomethinggreater
+  brand: Seat
   {{ include "vehicle-base" . }}
   {{ include "vehicle-features" . }}