[Android] Remove emma coverage logic for instrumentation tests.

build/android/pylib/instrumentation/dispatch.py

 # Copyright (c) 2013 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.
 
 """Dispatches the instrumentation tests."""
 
 import logging
 import os
 
 from pylib import android_commands
@@ skipping 49 matching lines @@
       tests_missing_annotations = _GetTestsMissingAnnotation(test_pkg)
       if tests_missing_annotations:
         logging.warning('The following tests do not contain any annotation. '
                         'Assuming "%s":\n%s',
                         default_size_annotation,
                         '\n'.join(tests_missing_annotations))
         available_tests += tests_missing_annotations
   else:
     available_tests = [m for m in test_pkg.GetTestMethods()
                        if not test_pkg.IsPythonDrivenTest(m)]
-  coverage = os.environ.get('EMMA_INSTRUMENT') == 'true'
 
   tests = []
   if options.test_filter:
     # |available_tests| are in adb instrument format: package.path.class#test.
     filter_without_hash = options.test_filter.replace('#', '.')
     tests = [t for t in available_tests
              if filter_without_hash in t.replace('#', '.')]
   else:
     tests = available_tests
 
   if not tests:
     logging.warning('No instrumentation tests to run with current args.')
     return base_test_result.TestRunResults()
 
   tests *= options.number_of_runs
 
   attached_devices = android_commands.GetAttachedDevices()
 
   if not attached_devices:
     raise Exception('There are no devices online.')
   if options.device:
     attached_devices = [options.device]
 
   logging.info('Will run: %s', str(tests))
 
-  if len(attached_devices) > 1 and (coverage or options.wait_for_debugger):
-    logging.warning('Coverage / debugger can not be sharded, '
-                    'using first available device')
+  if len(attached_devices) > 1 and options.wait_for_debugger:
+    logging.warning('Debugger can not be sharded, using first available device')
     attached_devices = attached_devices[:1]
 
   def TestRunnerFactory(device, shard_index):
     return test_runner.TestRunner(
-        options, device, shard_index, False, test_pkg, [], is_uiautomator_test)
+        options, device, shard_index, test_pkg, [], is_uiautomator_test)
 
   return shard.ShardAndRunTests(TestRunnerFactory, attached_devices, tests,
                                 options.build_type)