Revert "ensure puma establishes the connection on boot"
Revert "ensure puma establishes the connection on boot"

This reverts commit be5d43dbccf04f73b9713ed2454c8d98e9663eba.

alphagov/trade-tariff-backend,bitzesty/trade-tariff-backend,bitzesty/trade-tariff-backend,alphagov/trade-tariff-backend,bitzesty/trade-tariff-backend,alphagov/trade-tariff-backend