Update "Type stripping in dependencies" section

The docs state, "To discourage package authors from publishing packages written in TypeScript, Node.js will _by default_ refuse to handle TypeScript files inside folders under a `node_modules` path" (emphasis added). This suggests that there's a way to override that default. However, as far as I can tell, there is not.

Author: joshkel

doc/api/typescript.md

@@ -206,8 +206,8 @@ are enabled by default.
 ### Type stripping in dependencies
 
 To discourage package authors from publishing packages written in TypeScript,
-Node.js will by default refuse to handle TypeScript files inside folders under
-a `node_modules` path.
+Node.js currently refuses to handle TypeScript files inside folders under a
+`node_modules` path.
 
 ### Paths aliases