Temporarily disable clearing TX pipeline due to RADAE startup latency.

src/pipeline/TxRxThread.cpp

@@ -648,7 +648,8 @@ void TxRxThread::txProcessing_()
  {
  // Deallocates TX pipeline when not in use. This is needed to reset the state of
  // certain TX pipeline steps (such as Speex).
- pipeline_ = nullptr;
+ // XXX: temporarily disabling due to latency of RADAE scripts while restarting.
+ //pipeline_ = nullptr;
 
  // Wipe anything added in the FIFO to prevent pops on next TX.
  clearFifos_();