Remove explicit module name from log messages

The module name doesn't need to be logged as MXS_MODULE_NAME will be
automatically added as a prefix to all messages logged by the module.

server/modules/routing/readconnroute/readconnroute.c

@@ -442,7 +442,7 @@ newSession(ROUTER *instance, SESSION *session)
 
     CHK_CLIENT_RSES(client_rses);
 
-    MXS_INFO("Readconnroute: New session for server %s. Connections : %d",
+    MXS_INFO("New session for server %s. Connections : %d",
              candidate->server->unique_name, candidate->connections);
 
     return(void *) client_rses;