fix lint:

HerrCai0907 · HerrCai0907 · commit 0a35cbaaa456 · 2025-12-27T10:01:15.000+08:00
diff --git a/src/ast.ts b/src/ast.ts
@@ -18,7 +18,6 @@ import {
   CommonFlags,
   PATH_DELIMITER,
   LIBRARY_PREFIX,
-  LIBRARY_SUBST
 } from "./common";
 
 import {
