Removed useless `async` decleration

lib/get-files.js

@@ -306,8 +306,7 @@ async function explode(paths, { accepts, debug }) {
     return path;
   };
 
-  const many = async all => Promise.all(all.map(async file => list(file)));
+  const many = all => Promise.all(all.map(file => list(file)));
-
   return flatten(await many(paths)).filter(v => v !== null);
 }