Remove an obsolete sentence.
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 74b2efb..1e33fa3 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -198,9 +198,7 @@
.. index:: pair: integer; representation
The rules for integer representation are intended to give the most meaningful
- interpretation of shift and mask operations involving negative integers. Any
- operation except left shift, if it yields a result in the plain integer domain
- without causing overflow, will yield the same result when using mixed operands.
+ interpretation of shift and mask operations involving negative integers.
:class:`numbers.Real` (:class:`float`)
.. index::