Minor cleanup

Author: rhshadrach

pandas/core/indexing.py

@@ -662,9 +662,7 @@ def __setitem__(self, key, value):
         indexer = self._get_setitem_indexer(key)
         self._has_valid_setitem_indexer(key)
 
-        if self.name == "iloc" and (
-            isinstance(value, ABCSeries) or isinstance(value, ABCDataFrame)
-        ):
+        if self.name == "iloc" and isinstance(value, (ABCSeries, ABCDataFrame)):
             # Strip labels so we don't align with RHS
             value = value._values