Revert of [Android] Add zip pushing and refine push mode selection.

build/android/pylib/instrumentation/test_runner.py

Index: build/android/pylib/instrumentation/test_runner.py
diff --git a/build/android/pylib/instrumentation/test_runner.py b/build/android/pylib/instrumentation/test_runner.py
index 39b0b0c8efd68feed9f6bf1259ee940977d4cbaa..4f8cdcf304a1ff234415a93a9d279c9ecffdf649 100644
--- a/build/android/pylib/instrumentation/test_runner.py
+++ b/build/android/pylib/instrumentation/test_runner.py
@@ -99,15 +99,14 @@ class TestRunner(base_test_runner.BaseTestRunner):
                       str(self.device))
       return
 
-    host_device_file_tuples = []
     test_data = _GetDataFilesForTestSuite(self.test_pkg.GetApkName())
     if test_data:
       # Make sure SD card is ready.
       self.device.WaitUntilFullyBooted(timeout=20)
-      host_device_file_tuples += [
-          (os.path.join(constants.DIR_SOURCE_ROOT, p),
-           os.path.join(self.device.GetExternalStoragePath(), p))
-          for p in test_data]
+      for p in test_data:
+        self.device.PushChangedFiles(
+            os.path.join(constants.DIR_SOURCE_ROOT, p),
+            os.path.join(self.device.GetExternalStoragePath(), p))
 
     # TODO(frankf): Specify test data in this file as opposed to passing
     # as command-line.
@@ -118,14 +117,12 @@ class TestRunner(base_test_runner.BaseTestRunner):
       host_test_files_path = os.path.join(constants.DIR_SOURCE_ROOT,
                                           host_src)
       if os.path.exists(host_test_files_path):
-        host_device_file_tuples += [(
+        self.device.PushChangedFiles(
             host_test_files_path,
             '%s/%s/%s' % (
                 self.device.GetExternalStoragePath(),
                 TestRunner._DEVICE_DATA_DIR,
-                dst_layer))]
-    if host_device_file_tuples:
-      self.device.PushChangedFiles(host_device_file_tuples)
+                dst_layer))
     self.tool.CopyFiles()
     TestRunner._DEVICE_HAS_TEST_FILES[str(self.device)] = True