Format code with yapf

This commit fixes the style issues introduced in 2790f48 according to the output
from yapf.

Details: https://deepsource.io/gh/kokarare1212/librespot-python/transform/04a80a03-ea85-44b3-9159-2580bda68c1c/

librespot/player/__init__.py

@@ -85,4 +85,3 @@ class PlayerConfiguration:
                 self.initial_volume,
                 self.volume_steps,
             )
-