Joe Marchant takes the 31-year-old’s place in the England line-up to face Scotland in the Six Nations.
The investigation opened in January 2022.
The Jockey Club is scrapping formal dress codes at all 15 of its courses to make horse racing more “accessible and inclusive”.
England head coach Steve Borthwick has named his first matchday squad that will face Scotland in the Six Nations at Twickenham on Saturday.