On Monday, Mr. Sullivan said that he was in fact no longer representing Mr. Weinstein. In an emailed statement, he said that a judge on Monday had approved his request to withdraw from the legal team. He said that a rescheduling of the trial to September had created a conflict with his teaching obligations at Harvard Law School. He said he would remain available to Mr. Weinstein’s legal team for advice and consultation.

He added, “My decision to represent Mr. Weinstein sparked considerable discussion and activism around issues of sexual violence, the appropriate role and responsibilities of Harvard and its faculty in addressing those issues, and the tension between protecting the rights of those criminally accused and validating the experience of those who are survivors of sexual violence. My representation of those accused of sexual assault does not speak to my personal views on any of these matters.”

The decision not to renew the appointments of Mr. Sullivan and Ms. Robinson as faculty deans does not affect their positions at the law school, where Mr. Sullivan is the Jesse Climenko Clinical Professor of Law and the director of the Criminal Justice Institute.

The controversy around Mr. Sullivan’s representation of Mr. Weinstein highlighted a conflict between the legal principle that every accused person deserves a vigorous defense and students’ demands that college officials show support for victims of sexual assault. “Whose side are you on?” demanded one of the spray-painted messages directed at Mr. Sullivan earlier this year.

But a number of Mr. Sullivan’s colleagues came to his defense; 52 professors at the law school signed a letter supporting him, saying that his commitment to representing unpopular clients was fully consistent with his roles as law professor and faculty dean, and that Harvard should not pressure him to resign.

At the same time, the dispute took on a racial element, with some saying that Mr. Sullivan was being treated unfairly. In a statement in late March, the Harvard Black Law Students Association criticized the decision by the university to conduct a climate review and expressed concern about “the racist undertones evidenced by the disproportionate response to this issue by the university.”

Mr. Sullivan himself suggested that race was playing a role in the handling of the controversy.

“It is not lost on me that I’m the first African-American to hold this position,” he told The Times earlier this year. “Never in the history of the faculty dean position has the dean been subjected to a ‘climate review’ in the middle of some controversy.”