fixCppDefaultApi.patch

--- DefaultApi.cpp	2024-08-29 17:22:20.027445625 +0200
+++ DefaultApi_corrected.cpp	2024-08-29 16:56:07.532059800 +0200
@@ -28,8 +28,6 @@
 namespace server {
 namespace api {
 
-using namespace org::openapitools::server::model;
-
 namespace {
 [[maybe_unused]]
 std::string selectPreferredContentType(const std::vector<std::string>& contentTypes) {