(chore) Remove static composer hash from setup script
Instructions at https://getcomposer.org/doc/faqs/how-to-install-composer-programmatically.md
...indicate to wget the hash down eliminating the need for the hash to be static in the script
Instructions at https://getcomposer.org/doc/faqs/how-to-install-composer-programmatically.md
...indicate to wget the hash down eliminating the need for the hash to be static in the script