The Royal Navy after the US Africa Squadron's recall

How did the Royal Navy's anti-slavery patrol benefit when the US Africa Squadron was recalled in 1861?

The recall eased operations and political friction because the American squadron had not always been a reliable partner in that duty.

The US Africa Squadron's recall made the Royal Navy's anti-slavery patrol easier to manage. It also removed some of the political complications created by joint operations. The American squadron had not always been a reliable partner in carrying out that duty. Its departure therefore simplified enforcement even though it reduced the number of participating naval forces.