Remove logcats from instrumentation test run steps.

scripts/slave/recipe_modules/chromium_android/example.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 = [
     'adb',
     'chromium',
     'chromium_android',
@@ skipping 172 matching lines @@
       isolate_file_path='android_webview/android_webview_test_apk.isolate',
       flakiness_dashboard='test-results.appspot.com',
       annotation='SmallTest',
       except_annotation='FlakyTest',
       screenshot=True,
       official_build=True,
       host_driven_root=api.path['checkout'].join('chrome', 'test'),
       timeout_scale=config.get('timeout_scale'),
       strict_mode=config.get('strict_mode'),
       additional_apks=['Additional.apk'],
-      step_test_data=lambda: api.raw_io.test_api.output(
-          'logging...\nbeep\nboop\bbop'),
       device_flags=config.get('device_flags'))
   api.chromium_android.run_test_suite(
       'unittests',
       isolate_file_path=api.path['checkout'].join('some_file.isolate'),
       gtest_filter='WebRtc*',
       tool='asan')
   if not failure:
       api.chromium_android.run_bisect_script(extra_src='test.py',
                                              path_to_config='test.py')
 
@@ skipping 156 matching lines @@
              'Created xml report file at file:///path/to/testResult.xml',
              stream='stdout')) +
          api.override_step_data('Read test result and report failures',
              api.raw_io.output(result_xml_with_unexpected_failure_method)))
 
   yield (api.test('webview_cts_invalid_output') +
          properties_for('webview_cts') +
          api.override_step_data('Run CTS', api.raw_io.stream_output(
              'Invalid CTS output here...',
              stream='stdout')))