Don't reset sys.usb.configfs during userspace reboot

Test: adb reboot userspace (on blueline)
Test: adb reboot userspace (on cuttlefish)
Bug: 147726967
Change-Id: Id4a367e74b418a85e8454e952e12e0723efc9b8a
diff --git a/rootdir/init.usb.rc b/rootdir/init.usb.rc
index 02d34ba..27b05ec 100644
--- a/rootdir/init.usb.rc
+++ b/rootdir/init.usb.rc
@@ -138,5 +138,4 @@
 
 on userspace-reboot-requested
   setprop sys.usb.config ""
-  setprop sys.usb.configfs ""
   setprop sys.usb.state ""