Hi,
1- Open the "Module Manager" and find this module:
Bottom-A (left)
(sorry for the faulty module naming. Actually it was supposed to be
Bottom-A (top))
It is an ordinary HTML and you can delete, modify or edit it as you wish
2- Newsletter: The newsletter input and the button you see in our template; are just the stylization. There is no structure behind them to setup. You would need a 3rd party newsletter component to create newsletter. There are many free 3rd party newsletter components/plugins for Joomla. Check them out from here:
extensions.joomla.org/extensions/marketing/newsletter
(or use a 3rd party newsletter service, like:
mailchimp.com , they will give you a HTML codes to copy-paste them to your website in order to add people through newsletter subscription forms)
Regards,
Support