Remove local typedefs in list.c (silences compile-time warning)

Author: willend

mccode/src/list.c

@@ -43,8 +43,9 @@ struct List_position
     int index;                  /* Next element to return. */
   };
 
-typedef struct List_header *List;
-typedef struct List_position *List_handle;
+/* Typedefs suppressed, already defined from mccode.h */
+/* typedef struct List_header *List;
+   typedef struct List_position *List_handle; */
 
 /*******************************************************************************
 * Create a new list.
@@ -233,4 +234,5 @@ List list_copy(List from, void * (*copier)(void *)){
     list_iterate_end(liter);
   }
   return to;
-}
+}
+