Removed some more imports/warnings useless after recent removals.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@17850 bcc190cf-cafb-0310-a4f2-bffc1f526a37

django/contrib/formtools/tests/__init__.py

@@ -7,7 +7,6 @@ from django.conf import settings
 from django.contrib.formtools import preview, utils
 from django.contrib.formtools.wizard import FormWizard
 from django.test import TestCase
-from django.test.utils import get_warnings_state, restore_warnings_state
 from django.utils import unittest
 
 from django.contrib.formtools.tests.wizard import *
@@ -47,20 +46,12 @@ class PreviewTests(FormToolsTestCase):
 
     def setUp(self):
         super(PreviewTests, self).setUp()
-        self.save_warnings_state()
-        warnings.filterwarnings('ignore', category=DeprecationWarning,
-                                module='django.contrib.formtools.utils')
-
         # Create a FormPreview instance to share between tests
         self.preview = preview.FormPreview(TestForm)
         input_template = '<input type="hidden" name="%s" value="%s" />'
         self.input = input_template % (self.preview.unused_name('stage'), "%d")
         self.test_data = {'field1':u'foo', 'field1_':u'asdf'}
 
-    def tearDown(self):
-        super(PreviewTests, self).tearDown()
-        self.restore_warnings_state()
-
     def test_unused_name(self):
         """
         Verifies name mangling to get uniue field name.

tests/regressiontests/test_runner/tests.py

@@ -3,9 +3,7 @@ Tests for django test runner
 """
 from __future__ import absolute_import
 
-import StringIO
 from optparse import make_option
-import warnings
 
 from django.core.exceptions import ImproperlyConfigured
 from django.core.management import call_command
@@ -13,7 +11,6 @@ from django import db
 from django.test import simple
 from django.test.simple import DjangoTestSuiteRunner, get_tests
 from django.test.testcases import connections_support_transactions
-from django.test.utils import get_warnings_state, restore_warnings_state
 from django.utils import unittest
 from django.utils.importlib import import_module