Fix form submission toasts

src/components/admin/ParkForm.tsx

@@ -261,12 +261,7 @@ export function ParkForm({ onSubmit, onCancel, initialData, isEditing = false }:
         _compositeSubmission: (tempNewOperator || tempNewPropertyOwner) ? submissionContent : undefined
       });
       
-      toast({
-        title: isEditing ? "Park Updated" : "Park Created",
-        description: isEditing 
-          ? "The park information has been updated successfully."
-          : "The new park has been created successfully."
-      });
+      // Parent component handles success feedback
     } catch (error: unknown) {
       const errorMessage = getErrorMessage(error);
       handleError(error, {