regenerate samples

Author: Picazsoo

samples/server/petstore/springboot-sort-validation/.openapi-generator/FILES

@@ -4,7 +4,6 @@ src/main/java/org/openapitools/OpenApiGeneratorApplication.java
 src/main/java/org/openapitools/RFC3339DateFormat.java
 src/main/java/org/openapitools/api/ApiUtil.java
 src/main/java/org/openapitools/api/NullableApi.java
-src/main/java/org/openapitools/api/NullableApiController.java
 src/main/java/org/openapitools/api/PetApi.java
 src/main/java/org/openapitools/configuration/EnumConverterConfiguration.java
 src/main/java/org/openapitools/configuration/HomeController.java