Fixed #22313 -- Removed 'u' prefixes from documentation

docs/ref/models/instances.txt

@@ -449,7 +449,7 @@ For example::
         last_name = models.CharField(max_length=50)
 
         def __unicode__(self):
-            return u'%s %s' % (self.first_name, self.last_name)
+            return '%s %s' % (self.first_name, self.last_name)
 
 If you define a ``__unicode__()`` method on your model and not a
 :meth:`~Model.__str__()` method, Django will automatically provide you with a
@@ -724,9 +724,9 @@ For example::
 
     class Person(models.Model):
         SHIRT_SIZES = (
-            (u'S', u'Small'),
-            (u'M', u'Medium'),
-            (u'L', u'Large'),
+            ('S', 'Small'),
+            ('M', 'Medium'),
+            ('L', 'Large'),
         )
         name = models.CharField(max_length=60)
         shirt_size = models.CharField(max_length=2, choices=SHIRT_SIZES)
@@ -736,9 +736,9 @@ For example::
     >>> p = Person(name="Fred Flintstone", shirt_size="L")
     >>> p.save()
     >>> p.shirt_size
-    u'L'
+    'L'
     >>> p.get_shirt_size_display()
-    u'Large'
+    'Large'
 
 .. method:: Model.get_next_by_FOO(\**kwargs)
 .. method:: Model.get_previous_by_FOO(\**kwargs)

docs/ref/models/querysets.txt

@@ -484,7 +484,7 @@ A few subtleties that are worth mentioning:
   For example::
 
     >>> Entry.objects.values()
-    [{'blog_id': 1, 'headline': u'First Entry', ...}, ...]
+    [{'blog_id': 1, 'headline': 'First Entry', ...}, ...]
 
     >>> Entry.objects.values('blog')
     [{'blog': 1}, ...]
@@ -554,7 +554,7 @@ respective field passed into the ``values_list()`` call — so the first item is
 the first field, etc. For example::
 
     >>> Entry.objects.values_list('id', 'headline')
-    [(1, u'First entry'), ...]
+    [(1, 'First entry'), ...]
 
 If you only pass in a single field, you can also pass in the ``flat``
 parameter. If ``True``, this will mean the returned results are single values,