Remove logic to add CQ_EXTRA_TRYBOTS on benchmark changes.

tools/perf/PRESUBMIT.py

Index: tools/perf/PRESUBMIT.py
diff --git a/tools/perf/PRESUBMIT.py b/tools/perf/PRESUBMIT.py
index ec698c423759c3178ef554603c960c790759c141..25fe5f49f644c2145c85a5e8c0c4902170a7f783 100644
--- a/tools/perf/PRESUBMIT.py
+++ b/tools/perf/PRESUBMIT.py
@@ -9,7 +9,6 @@ for more details about the presubmit API built into depot_tools.
 """
 
 import os
-import re
 import sys
 
 
@@ -96,50 +95,3 @@ def CheckChangeOnCommit(input_api, output_api):
   report = []
   report.extend(_CommonChecks(input_api, output_api))
   return report
-
-
-def _AreBenchmarksModified(change):
-  """Checks whether CL contains any modification to Telemetry benchmarks."""
-  for affected_file in change.AffectedFiles():
-    file_path = affected_file.LocalPath()
-    # Changes to unittest files should not count.
-    if file_path.endswith('test.py'):
-        continue
-    if (os.path.join('tools', 'perf', 'benchmarks') in file_path or
-        os.path.join('tools', 'perf', 'measurements') in file_path):
-      return True
-  return False
-
-
-def PostUploadHook(cl, change, output_api):
-  """git cl upload will call this hook after the issue is created/modified.
-
-  This hook adds extra try bots list to the CL description in order to run
-  Telemetry benchmarks on Perf trybots in addition to CQ trybots if the CL
-  contains any changes to Telemetry benchmarks.
-  """
-  benchmarks_modified = _AreBenchmarksModified(change)
-  rietveld_obj = cl.RpcServer()
-  issue = cl.issue
-  original_description = rietveld_obj.get_description(issue)
-  if not benchmarks_modified or re.search(
-      r'^CQ_INCLUDE_TRYBOTS=.*', original_description, re.M | re.I):
-    return []
-
-  results = []
-  bots = [
-    'linux_perf_cq',
-    'mac_retina_perf_cq',
-    'winx64_10_perf_cq'
-  ]
-  bots = ['master.tryserver.chromium.perf:%s' % s for s in bots]
-  bots_string = ';'.join(bots)
-  description = original_description
-  description += '\nCQ_INCLUDE_TRYBOTS=%s' % bots_string
-  results.append(output_api.PresubmitNotifyResult(
-      'Automatically added Perf trybots to run Telemetry benchmarks on CQ.'))
-
-  if description != original_description:
-    rietveld_obj.update_description(issue, description)
-
-  return results