Improved skipping of empty packages in class diagrams

src/class_diagram/model/diagram.h

@@ -187,7 +187,6 @@ bool diagram::add_with_filesystem_path(
 
     const auto base_name = e->name();
     const auto full_name = e->full_name(false);
-    const auto id = e->id();
     auto &e_ref = *e;
 
     if (add_element(parent_path, std::move(e))) {
@@ -195,9 +194,6 @@ bool diagram::add_with_filesystem_path(
         return true;
     }
 
-    LOG_WARN(
-        "Cannot add {} {} with id {} due to: {}", element_type, base_name, id);
-
     return false;
 }