only generate uninstall function if it contains commands

src/datapack/mod.rs

@@ -195,6 +195,7 @@ impl Datapack {
         }
 
         if let Some(uninstall_commands) = uninstall_commands {
+            if !uninstall_commands.is_empty() {
                 let main_namespace = modified_namespaces
                     .entry(&self.main_namespace_name)
                     .or_insert_with(|| Cow::Owned(Namespace::new(&self.main_namespace_name)));
@@ -203,6 +204,7 @@ impl Datapack {
                     .get_commands_mut()
                     .extend(uninstall_commands);
             }
+        }
 
         // Compile namespaces
         for (name, namespace) in modified_namespaces {