Revert of [Android] Remove more uses of android_commands from build/android/pylib.

build/android/pylib/device/device_utils.py

Index: build/android/pylib/device/device_utils.py
diff --git a/build/android/pylib/device/device_utils.py b/build/android/pylib/device/device_utils.py
index 95c951925c089a3192cbcfe9bac3481095d5520e..46aec6fc9df0eb7b94b89628457567a692299b81 100644
--- a/build/android/pylib/device/device_utils.py
+++ b/build/android/pylib/device/device_utils.py
@@ -175,29 +175,6 @@
     assert hasattr(self, decorators.DEFAULT_TIMEOUT_ATTR)
     assert hasattr(self, decorators.DEFAULT_RETRIES_ATTR)
 
-  def __eq__(self, other):
-    """Checks whether |other| refers to the same device as |self|.
-
-    Args:
-      other: The object to compare to. This can be a basestring, an instance
-        of adb_wrapper.AdbWrapper, or an instance of DeviceUtils.
-    Returns:
-      Whether |other| refers to the same device as |self|.
-    """
-    return self.adb.GetDeviceSerial() == str(other)
-
-  def __lt__(self, other):
-    """Compares two instances of DeviceUtils.
-
-    This merely compares their serial numbers.
-
-    Args:
-      other: The instance of DeviceUtils to compare to.
-    Returns:
-      Whether |self| is less than |other|.
-    """
-    return self.adb.GetDeviceSerial() < other.adb.GetDeviceSerial()
-
   def __str__(self):
     """Returns the device serial."""
     return self.adb.GetDeviceSerial()