drop explicit command entry

The command entry for ethStatsCmd was accepted into
phosphor-host-ipmid's oem header.  Therefore, no longer specify it
locally.

Change-Id: I5b8a1e1dd47801bda96993c3fc215ca4553eb9ce
Signed-off-by: Patrick Venture <venture@google.com>
diff --git a/main.cpp b/main.cpp
index 4f3020c..3c17b37 100644
--- a/main.cpp
+++ b/main.cpp
@@ -25,17 +25,12 @@
 #include <experimental/filesystem>
 #include <fstream>
 #include <host-ipmid/iana.hpp>
+#include <host-ipmid/oemopenbmc.hpp>
 #include <host-ipmid/oemrouter.hpp>
 #include <map>
 #include <sstream>
 #include <string>
 
-/* TODO: Swap out once https://gerrit.openbmc-project.xyz/12958 is merged */
-namespace oem
-{
-constexpr auto ethStatsCmd = 48;
-} // namespace oem
-
 namespace ethstats
 {
 namespace fs = std::experimental::filesystem;
@@ -187,17 +182,17 @@
     /* Install in Google OEM Namespace when enabled. */
     std::fprintf(stderr,
                  "Registering OEM:[%#08X], Cmd:[%#04X] for Ethstats Commands\n",
-                 oem::googOemNumber, oem::ethStatsCmd);
+                 oem::googOemNumber, oem::Cmd::ethStatsCmd);
 
-    oemRouter->registerHandler(oem::googOemNumber, oem::ethStatsCmd,
+    oemRouter->registerHandler(oem::googOemNumber, oem::Cmd::ethStatsCmd,
                                HandleEthStatCommand);
 #endif
 
     std::fprintf(stderr,
                  "Registering OEM:[%#08X], Cmd:[%#04X] for Ethstats Commands\n",
-                 oem::obmcOemNumber, oem::ethStatsCmd);
+                 oem::obmcOemNumber, oem::Cmd::ethStatsCmd);
 
-    oemRouter->registerHandler(oem::obmcOemNumber, oem::ethStatsCmd,
+    oemRouter->registerHandler(oem::obmcOemNumber, oem::Cmd::ethStatsCmd,
                                HandleEthStatCommand);
 }