Fix FanRemoved MessageArgs number

FanRemoved MessageArgs was mistakenly changed from 1 to 0. This changes
it back to 1 to fix getting Internal Server Error on events.

Tested:
Confirmed that FanRemoved events can be retrieved without getting a 500
error code.

Change-Id: I9a2a55a5ee3d2bea073d7d55ed9fe53dc2aaee9d
Signed-off-by: Jason M. Bills <jason.m.bills@intel.com>
diff --git a/redfish-core/include/registries/openbmc_message_registry.hpp b/redfish-core/include/registries/openbmc_message_registry.hpp
index 01b0312..85b6103 100644
--- a/redfish-core/include/registries/openbmc_message_registry.hpp
+++ b/redfish-core/include/registries/openbmc_message_registry.hpp
@@ -477,7 +477,7 @@
                      "Indicates that a system fan has been removed.",
                      "%1 removed.",
                      "OK",
-                     0,
+                     1,
                      {"string"},
                      "None.",
                  }},