fix: add typescript version

types/js-to-java/index.d.ts

@@ -2,11 +2,8 @@
 // Project: https://github.com/node-modules/js-to-java
 // Definitions by: skyitachi <https://github.com/skyitachi>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 2.3
 
-/*~ If this module is a UMD module that exposes a global variable 'myLib' when
- *~ loaded outside a module loader environment, declare that global here.
- *~ Otherwise, delete this declaration.
- */
 interface Currency {
   currencyCode: string;
   [k: string]: any;