Remove device_admin feature from wearables.

Change-Id: I2b10ac11ed48a5162f718a826d747c2086a1607f
diff --git a/data/etc/wearable_core_hardware.xml b/data/etc/wearable_core_hardware.xml
index d7c3730..e2ab71a 100644
--- a/data/etc/wearable_core_hardware.xml
+++ b/data/etc/wearable_core_hardware.xml
@@ -36,9 +36,6 @@
     <!-- basic system services -->
     <feature name="android.software.home_screen" />
 
-    <!-- device administration -->
-    <feature name="android.software.device_admin" />
-
     <!-- input management and third-party input method editors -->
     <feature name="android.software.input_methods" />