refactor(packages): remove quantity_classes from package requests

app/Http/Requests/ClassPackageRequest.php

@@ -16,7 +16,6 @@ public function rules(): array
 
         return [
             'name'                    => "$required|string|max:255",
-            'quantity_classes'        => "$required|integer|min:1",
             'class_duration_minutes'  => "$required|integer|min:1|max:1440",
 
             // 'weekday'           => 'nullable|integer|min:0|max:6|required_with:start_time',

app/Http/Requests/ClassPackageUnitRequest.php

@@ -16,7 +16,6 @@ public function rules(): array
 
         return [
             'name'                    => "$required|string|max:255",
-            'quantity_classes'        => "$required|integer|min:1",
             'visible'                 => 'sometimes|boolean',
             'class_duration_minutes'  => "$required|integer|min:1|max:1440",