diff --git a/Doc/library/unittest.rst b/Doc/library/unittest.rst
index aa763086bff..984ec272dad 100644
--- a/Doc/library/unittest.rst
+++ b/Doc/library/unittest.rst
@@ -891,10 +891,6 @@ Test cases
          with self.failUnlessRaises(some_error_class):
              do_something()
 
-      The context manager will store the caught exception object in its
-      :attr:`exc_value` attribute.  This can be useful if the intention
-      is to perform additional checks on the exception raised.
-
       .. versionchanged:: 3.1
          Added the ability to use :meth:`assertRaises` as a context manager.
 
diff --git a/Lib/test/test_unittest.py b/Lib/test/test_unittest.py
index 120a90d759c..040880ad028 100644
--- a/Lib/test/test_unittest.py
+++ b/Lib/test/test_unittest.py
@@ -2846,21 +2846,6 @@ def Stub():
                 self.assertRaisesRegexp, Exception,
                 re.compile('^Expected$'), Stub)
 
-    def testAssertRaisesExcValue(self):
-        class ExceptionMock(Exception):
-            pass
-
-        def Stub(foo):
-            raise ExceptionMock(foo)
-        v = "particular value"
-
-        ctx = self.assertRaises(ExceptionMock)
-        with ctx:
-            Stub(v)
-        e = ctx.exc_value
-        self.assertTrue(isinstance(e, ExceptionMock))
-        self.assertEqual(e.args[0], v)
-
     def testSynonymAssertMethodNames(self):
         """Test undocumented method name synonyms.
 
diff --git a/Lib/unittest/case.py b/Lib/unittest/case.py
index 88254be68b4..79c4a7255b1 100644
--- a/Lib/unittest/case.py
+++ b/Lib/unittest/case.py
@@ -116,7 +116,6 @@ def __exit__(self, exc_type, exc_value, tb):
         if not issubclass(exc_type, self.expected):
             # let unexpected exceptions pass through
             return False
-        self.exc_value = exc_value #store for later retrieval
         if self.expected_regex is None:
             return True