Fix linting issue

Author: markcowl

packages/typespec-azure-resource-manager/src/resource.ts

@@ -1388,7 +1388,6 @@ export const $feature: FeatureDecorator = (
   featureName: EnumMember,
 ) => {
   const { program } = context;
-  const options = getFeatureOptions(program, featureName);
   setResourceFeature(program, entity, featureName);
 };