Removed encode from test

Django does not produce such a decoding by default, this test was not honest.

rest_framework/tests/test_parsers.py

@@ -96,7 +96,7 @@ class TestFileUploadParser(TestCase):
         request = MockRequest()
         request.upload_handlers = (MemoryFileUploadHandler(),)
         request.META = {
-            'HTTP_CONTENT_DISPOSITION': 'Content-Disposition: inline; filename=file.txt'.encode('utf-8'),
+            'HTTP_CONTENT_DISPOSITION': 'Content-Disposition: inline; filename=file.txt',
             'HTTP_CONTENT_LENGTH': 14,
         }
         self.parser_context = {'request': request, 'kwargs': {}}