Remove extra semi colon from omnistore/client/common/SyncProtocol.cpp

Summary:
`-Wextra-semi` or `-Wextra-semi-stmt`

If the code compiles, this is safe to land.

Reviewed By: palmje

Differential Revision: D55534612

fbshipit-source-id: 3fd79a9e151b76afdefc106a70c866be76e65bee

src/oomd/plugins/systemd/BaseSystemdPlugin.cpp

@@ -58,7 +58,7 @@ bool BaseSystemdPlugin::talkToSystemdManager(
   if (bus == nullptr) {
     OLOG << "Failed to connect to system bus: bus is null";
     return false;
-  };
+  }
 
   /* Issue the method call and store the respons message in m */
   r = ::sd_bus_call_method(