correct abolish/1

src/prolog/machine/dynamic_database.rs

@@ -69,8 +69,7 @@ impl Machine {
             set_code_index!(idx, IndexPtr::Undefined, clause_name!("user"));
         }
 
-        self.indices.code_dir.remove(&(name.clone(), arity));
-        self.indices.dynamic_code_dir.remove(&(name, arity));
+        self.indices.remove_code_index((name, arity));
     }
 
     fn handle_eval_result_from_dynamic_compile(&mut self, pred_str: String, name: ClauseName,

src/prolog/machine/mod.rs

@@ -103,11 +103,8 @@ impl SubModuleUser for IndexStore {
 
     fn remove_code_index(&mut self, key: PredicateKey)
     {
-        self.code_dir.remove(&key);
-
-        if self.dynamic_code_dir.contains_key(&key) {
-            self.dynamic_code_dir.remove(&key);
-        }
+        self.code_dir.remove(&key);        
+        self.dynamic_code_dir.remove(&key);
     }
 
     fn insert_dir_entry(&mut self, name: ClauseName, arity: usize, idx: ModuleCodeIndex)