Remove unused class OutputCaptureTestCaseBase.

third_party/WebKit/Tools/Scripts/webkitpy/common/system/outputcapture.py

Index: third_party/WebKit/Tools/Scripts/webkitpy/common/system/outputcapture.py
diff --git a/third_party/WebKit/Tools/Scripts/webkitpy/common/system/outputcapture.py b/third_party/WebKit/Tools/Scripts/webkitpy/common/system/outputcapture.py
index f08fc9617f2ca00b37a5fa72360b31929f5b3ab7..8511a7ea27dd0947f01dbe990aaddf7c2caa5650 100644
--- a/third_party/WebKit/Tools/Scripts/webkitpy/common/system/outputcapture.py
+++ b/third_party/WebKit/Tools/Scripts/webkitpy/common/system/outputcapture.py
@@ -101,24 +101,3 @@ class OutputCapture(object):
             testassert(logs_string, expected_logs)
         # This is a little strange, but I don't know where else to return this information.
         return return_value
-
-
-class OutputCaptureTestCaseBase(unittest.TestCase):
-    maxDiff = None
-
-    def setUp(self):
-        unittest.TestCase.setUp(self)
-        self.output_capture = OutputCapture()
-        (self.__captured_stdout, self.__captured_stderr) = self.output_capture.capture_output()
-
-    def tearDown(self):
-        del self.__captured_stdout
-        del self.__captured_stderr
-        self.output_capture.restore_output()
-        unittest.TestCase.tearDown(self)
-
-    def assertStdout(self, expected_stdout):
-        self.assertEqual(expected_stdout, self.__captured_stdout.getvalue())
-
-    def assertStderr(self, expected_stderr):
-        self.assertEqual(expected_stderr, self.__captured_stderr.getvalue())