examples/lock: fix lock trait

Bug: 27276010
Change-Id: I06d468faab07863f9af1eb81cf68a82707857fa4
Reviewed-on: https://weave-review.googlesource.com/2748
Reviewed-by: Paul Westbrook <pwestbro@google.com>

examples/daemon/lock/lock.cc

diff --git a/examples/daemon/lock/lock.cc b/examples/daemon/lock/lock.cc
index a2da9cf..32ce12d 100644
--- a/examples/daemon/lock/lock.cc
+++ b/examples/daemon/lock/lock.cc
@@ -38,7 +38,7 @@
             "enum": [ "locked", "unlocked" ]
           }
         },
-        "errors": ["batteryTooLow", "jammed", "lockingNotSupported"]
+        "errors": [ "jammed", "lockingNotSupported" ]
       }
     },
     "state": {