Don't set governors parameters when getting them

Every time the governor parameter were fetched, they would be
deserialized from the attribute, then serialized again to the same
values. Stop doing that.

client/governor.cpp

@@ -701,10 +701,8 @@ void cmafec_get_fe_parameter(struct city *pcity, struct cm_parameter *dest)
 {
   struct cm_parameter parameter;
 
-  // our fe_parameter could be stale. our agents parameter is uptodate
   if (cma_is_city_under_agent(pcity, &parameter)) {
     cm_copy_parameter(dest, &parameter);
-    cmafec_set_fe_parameter(pcity, dest);
   } else {
     // Create a dummy parameter to return.
     cm_init_parameter(dest);