Clarify telemetry presubmit warning.

tools/telemetry/PRESUBMIT.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.
 
 
 def _CommonChecks(input_api, output_api):
   results = []
 
   results.extend(input_api.RunTests(input_api.canned_checks.GetPylint(
       input_api, output_api, extra_paths_list=_GetPathsToPrepend(input_api),
@@ skipping 10 matching lines @@
   # Temporarily make tools/telemetry/ read-only for the move to catapult.
 
   def other_files(f):
     this_presubmit_file = input_api.os_path.join(
         input_api.PresubmitLocalPath(), 'PRESUBMIT.py')
     return not f.AbsoluteLocalPath() == this_presubmit_file
 
   changed_files = input_api.AffectedSourceFiles(other_files)
   if changed_files:
     return [output_api.PresubmitError(
-        'tools/telemetry/ is temporarily read-only while it moves to catapult.'
-        '\nPlease make your changes to telemetry/ '
+        'tools/telemetry/ has moved to the catapult repo. It is deprecated and '
+        'scheduled for deletion on 1/29/16.'
+        '\nPlease instead make your changes to telemetry/ '
         'in https://github.com/catapult-project/catapult/tree/master/telemetry.'
         '\nContact aiolos@ for further questions. Changed files:\n',
         items=changed_files)]
   return []
 
 
 def _RunArgs(args, input_api):
   p = input_api.subprocess.Popen(args, stdout=input_api.subprocess.PIPE,
                                  stderr=input_api.subprocess.STDOUT)
   out, _ = p.communicate()
@@ skipping 94 matching lines @@
   results = []
   results.extend(_CommonChecks(input_api, output_api))
   results.extend(_CheckTelemetryBinaryDependencies(input_api, output_api))
   return results
 
 
 def CheckChangeOnCommit(input_api, output_api):
   results = []
   results.extend(_CommonChecks(input_api, output_api))
   return results