Remove useless serial response to rc command

[Arne-W]

Hi all,

every time the copter receives a rc-command through the serial Port it creates an answer and transmits it to the app. Normally the app does not handle this response - it discards it. So why not eliminate it. The answer is created at 2 places in the code. The header ist generated here https://github.com/koenkooi/multiwii-firmware/blob/pruts/Protocol.cpp#L248 and the tail of the message here https://github.com/koenkooi/multiwii-firmware/blob/pruts/Protocol.cpp#L710

We just need to remove this line and no header will be generated headSerialReply(siz +1);

and for removing the tail we add some code like this

  }
#if defined(RC_TINY)
  if (cmdMSP[CURRENTPORT] != MSP_SET_RAW_RC_TINY)
#endif
    tailSerialReply();
}
#endif // SUPPRESS_ALL_SERIAL_MSP

I have already tested the changes and there were no side effects. In fact it does not change anything ;-) but if you want to use Maltes telemetry logger its better to remove this useless overhead.

[koenkooi]

Can you check if that commit does what you want it to do?

[Arne-W]

Looks good - I will do a test this evening.

[Arne-W]

Hups - I forgot to tell you - Yes it works like expected.