The media mogul Barry Diller has pulled The Daily Beast off the auction block.Mr. Diller, the chairman of the digital media company IAC, said on Friday that The Daily Beast — a digital tabloid known for its aggressive political and media coverage — is not for sale.Until recent days, according to people with knowledge of the talks, he had been in discussions about a deal with Ankler Media, a start-up that has earned a reputation for its unsparing coverage of Hollywood elites since Janice Min, a longtime magazine editor, co-founded it early last year.“We did have negotiations with The Ankler, but we have withdrawn from them,” Mr. Diller, 81, said in a statement. “The Daily Beast is not for sale.”He did not elaborate on hi …