fix(npm): do not distribute placeholder binary

The intent of this commit is to remove the following warning available
on install

```
Error: EEXIST: file already exists, symlink ...
```

Closes #115

Author: EricCrosson

bin/monorepo

@@ -33,7 +33,6 @@
     "standard-version": "9.3.2"
   },
   "files": [
-    "bin/",
     "npm/"
   ]
 }