Fix bug in driver

luprex/cpp/core/lpxclient.cpp

@@ -95,7 +95,6 @@ public:
         StreamBuffer *sb = channel_->out();
         sb->write_uint8(util::MSG_INVOKE);
         inv.serialize(sb);
-        util::dprint("Sent ", inv.debug_string());
     }
 
     void send_lua_source(const util::LuaSourceVec &sv) {
@@ -228,7 +227,6 @@ public:
             receive_ack_from_server(&body);
         } else if (message_type == util::MSG_DIFF) {
             receive_diff_from_server(&body);
-            util::dprintf("Executed diff from server");
         } else {
             abandon_server();
             return false;