Add feature flag for b/110953234 fix.

Bug: http://b/110953234
Bug: http://b/117946501
Test: adb features
Test: test_device.py
Change-Id: I340a30544a6d0ab1b2545e5371c8f98d04158c56
diff --git a/adb/test_device.py b/adb/test_device.py
index c3166ff..34f8fd9 100755
--- a/adb/test_device.py
+++ b/adb/test_device.py
@@ -750,7 +750,7 @@
             if host_dir is not None:
                 shutil.rmtree(host_dir)
 
-    def test_push_empty(self):
+    def disabled_test_push_empty(self):
         """Push an empty directory to the device."""
         self.device.shell(['rm', '-rf', self.DEVICE_TEMP_DIR])
         self.device.shell(['mkdir', self.DEVICE_TEMP_DIR])