Revert of Asserting telemetry story display name length for filename creation.

telemetry/telemetry/page/__init__.py

 # Copyright 2012 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.
 import inspect
 import logging
 import os
 import urlparse
 
 from py_utils import cloud_storage  # pylint: disable=import-error
 
@@ skipping 50 matching lines @@
     # page actions.
     self._collect_garbage_before_run = True
 
     # These attributes can be set dynamically by the page.
     self.synthetic_delays = dict()
     self._startup_url = startup_url
     self.credentials = None
     self.skip_waits = False
     self.script_to_evaluate_on_commit = None
     self._SchemeErrorCheck()
-    # Confirm that the display name length that is used to generate the trace
-    # filename isn't too long. See crbug.com/662941.
-    assert len(self.display_name) <= 180
 
   @property
   def credentials_path(self):
     return self._credentials_path
 
   @property
   def cache_temperature(self):
     return self._cache_temperature
 
   @property
@@ skipping 137 matching lines @@
 
   @property
   def display_name(self):
     if self.name:
       return self.name
     if self.page_set is None or not self.is_file:
       return self.url
     all_urls = [p.url.rstrip('/') for p in self.page_set if p.is_file]
     common_prefix = os.path.dirname(os.path.commonprefix(all_urls))
     return self.url[len(common_prefix):].strip('/')