Remove unneeded files

js/ast/index.js

@@ -1,7 +0,0 @@
-import { ASA } from './ASA';
-import { NoGlobal } from './NoGlobal';
-import { NoDeclaracao } from './NoDeclaracao';
-
-exports.ASA = ASA;
-exports.NoGlobal = NoGlobal;
-exports.NoDeclaracao = NoDeclaracao;