[Android] Don't pass adb path to sharded perf tests.

infra/recipes/android/perf.py

 # Copyright 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.
 
 from recipe_engine.types import freeze
 
 
 DEPS = [
     'build/adb',
     'build/chromium',
@@ skipping 170 matching lines @@
       except api.step.StepFailure as f:
         failures.append(f)
 
     dynamic_perf_tests = api.chromium_tests.steps.DynamicPerfTests(
         builder['perf_id'], 'android', None,
         max_battery_temp=builder.get('max_battery_temp'),
         num_device_shards=builder['num_device_shards'],
         num_host_shards=builder.get('num_host_shards', 1),
         shard_index=builder.get('shard_index', 0),
         override_browser_name=builder.get('browser_name'),
-        enable_platform_mode=builder.get('enable_platform_mode'))
+        enable_platform_mode=builder.get('enable_platform_mode'),
+        pass_adb_path=False)
     dynamic_perf_tests.run(api, None)
 
     if failures:
       raise api.step.StepFailure('src-side perf tests failed %s' % failures)
   finally:
     api.chromium_android.common_tests_final_steps(
         logcat_gs_bucket='chromium-android')
 
 
 def _sanitize_nonalpha(text):
@@ skipping 148 matching lines @@
                        "adb_status": "device",
                        "imei_slice": "",
                        "ro.build.product": "bullhead",
                        "ro.build.id": "MDB08Q",
                        "serial": "00d0d567893340f4",
                        "wifi_ip": ""
                     }]
                 }}),
           retcode=87))