Removed else

Co-authored-by: Hugo van Kemenade <1324225+hugovk@users.noreply.github.com>

Author: radarhere

src/PIL/Image.py

@@ -2526,8 +2526,7 @@ def split(self) -> tuple[Image, ...]:
         self.load()
         if self.im.bands == 1:
             return (self.copy(),)
-        else:
-            return tuple(map(self._new, self.im.split()))
+        return tuple(map(self._new, self.im.split()))
 
     def getchannel(self, channel):
         """