updated dotenv config and deleted require path

Co-authored-by: Jon Cruz
<Jrcrz@users.noreply.github.com>
Co-authored-by: Elena Atencio
<elenaatencio@users.noreply.github.com>
Co-authored-by: Iris Wong
<wiris316@users.noreply.github.com>

Author: jdonuto

examples/AWS/AWS-ECS/app/chronos-config.js

@@ -1,5 +1,4 @@
-const path = require('path');
-require('dotenv').config({path: path.resolve(__dirname, './.env')});
+require('dotenv').config();
 
 module.exports = {
   // General configuration