Revert "weaved: Temporarily disable keystore_encryptor"

This reverts commit 6765efdf49f824c98d13afefe920bdee237e1c0f.

Change-Id: I4d35889f71d2a8dcd91155f2374f89c1a7d42bd1
diff --git a/Android.mk b/Android.mk
index 1c154c3..f207dbe 100644
--- a/Android.mk
+++ b/Android.mk
@@ -88,11 +88,11 @@
 	buffet/dbus_bindings/com.android.Weave.Command.dbus-xml \
 	buffet/dbus_bindings/com.android.Weave.Manager.dbus-xml \
 
-#ifdef BRILLO
-#LOCAL_SRC_FILES += buffet/keystore_encryptor.cc
-#else
+ifdef BRILLO
+LOCAL_SRC_FILES += buffet/keystore_encryptor.cc
+else
 LOCAL_SRC_FILES += buffet/fake_encryptor.cc
-#endif
+endif
 
 include $(BUILD_STATIC_LIBRARY)