dispense with
verb.
give up what is not strictly needed
he asked if they could spare one of their horses to speed his journey
Synonym: give up, part with, spare
verb.
do without or cease to hold or adhere to
We are dispensing with formalities|relinquish the old ideas
Synonym: forego, foreswear, forgo, relinquish, waive
verb.
forgo or do or go without