The Oscar will not have an official presentation this year for the second time in the history of the concert, said Carrie Burke, ABC's entertainment president.
Only three weeks before top prizes in the movie industry, Berk said on Tuesday that the February 24 event would give up the presenter and "just give the Academy Award winners."
ABC is a Walt Disney unit that broadcasts Oscars every year on television and is closely involved in broadcasting.
The Academy Award ceremony was held only once in its 91-year history in 1989.
Berk said the decision came after what she described as "the chaos" that followed Hart's retreat and an attempt to revive his chances of handing over the concert.