Revert of Update buildbots to parse new telemetry JSON format.

scripts/slave/telemetry_utils.py

Index: scripts/slave/telemetry_utils.py
diff --git a/scripts/slave/telemetry_utils.py b/scripts/slave/telemetry_utils.py
deleted file mode 100644
index 79fb51b0698d00929c0296f339755347b8b1869e..0000000000000000000000000000000000000000
--- a/scripts/slave/telemetry_utils.py
+++ /dev/null
@@ -1,71 +0,0 @@
-#! /usr/bin/env python
-# Copyright (c) 2014 The Chromium Authors. All rights reserved.
-# Use of this source code is governed by a BSD-style license that can be
-# found in the LICENSE file.
-# pylint: disable=R0201
-
-"""Log parsing for telemetry tests."""
-
-import json
-import logging
-import os
-import tempfile
-
-
-class TelemetryResultsTracker(object):
-
-  def __init__(self):
-    self._chart_filename = None
-    self._ref_chart_filename = None
-
-  def GetArguments(self):
-    if not self._chart_filename:
-      (handle, self._chart_filename) = tempfile.mkstemp()
-      os.close(handle)
-    if not self._ref_chart_filename:
-      (handle, self._ref_chart_filename) = tempfile.mkstemp()
-      os.close(handle)
-    return (['--chart-output-filename', self._chart_filename,
-             '--ref-output-filename', self._ref_chart_filename])
-
-  def _GetFileJson(self, filename):
-    try:
-      return json.loads(open(filename).read())
-    except (IOError, ValueError):
-      logging.error('Error reading telemetry results from %s', filename)
-      return None
-
-  def ChartJson(self):
-    return self._GetFileJson(self._chart_filename)
-
-  def RefJson(self):
-    return self._GetFileJson(self._ref_chart_filename)
-
-  def Cleanup(self):
-    try:
-      os.remove(self._chart_filename)
-    except OSError:
-      pass
-    try:
-      os.remove(self._ref_chart_filename)
-    except OSError:
-      pass
-
-  def IsChartJson(self):
-    """This is the new telemetry --chartjson output format."""
-    return True
-
-  def ProcessLine(self, line):
-    pass
-
-  def FailedTests(self):
-    return []
-
-  def SuppressionHashes(self):  # pylint: disable=R0201
-    return []
-
-  def ParsingErrors(self):  # pylint: disable=R0201
-    return []
-
-  def PerformanceSummary(self):
-    return ''