py/runtime: Remove comment in mp_import_name about level being 0.
A non-zero level has been supported for some time now.
@@ -1319,7 +1319,7 @@ mp_obj_t mp_import_name(qstr name, mp_obj_t fromlist, mp_obj_t level) {
args[1] = mp_const_none; // TODO should be globals
args[2] = mp_const_none; // TODO should be locals
args[3] = fromlist;
- args[4] = level; // must be 0; we don't yet support other values
+ args[4] = level;
// TODO lookup __import__ and call that instead of going straight to builtin implementation
return mp_builtin___import__(5, args);
