The oil tank breather is an essential component in a motorcycle's lubrication system. It allows air to flow in and out of the oil tank, preventing pressure buildup and ensuring proper circulation of the oil. Without a breather, excess pressure can cause oil leaks or other issues within the engine.
Harley-Davidson has made various changes and updates to their motorcycles over the years, so it's possible that they have made modifications to the design or placement of the oil tank breather. However, completely removing the breather would be highly unlikely due to the importance of its function.
If you are looking for alternative breathers or modifications for your Harley-Davidson motorcycle, it would be best to consult with authorized Harley-Davidson dealerships or specialized motorcycle customization shops. They can provide you with the most up-to-date information and suggest any aftermarket options that may be available.