At this time, it's not possible to set controls on the Rainy Day Fund or delete it completely like you would with a savings goal that you set up on your own.
If you'd rather concentrate on your personal goals and not save towards the Rainy Day Fund, you can set a daily savings limit of $0 for that fund by following the steps here.
When we first created Digit, we had one simple mission, to get folks saving. Lots of people have specific things they're saving for, but recent studies found that 61% of Americans are unable to come up with enough funds to cover a $1,000 emergency.
Your Rainy Day Fund within Digit is for exactly that, a rainy day. Digit saves for this fund by default for every Digit user to help you build up an emergency fund or for life's little surprises.