usrp1: Remove uninitialized skipRx logic

There appears to have been some logic to operate a USRP1 in
transmit-only GSM mode.  This is achieved using the skipRx member
of the transceiver object.  However, there's nobody that ever
initializes it properly, and hence the feature is not possible to
use anyway.

I don't think this has any valid use case, so let's remove it.

Change-Id: I616193f1e9aaefbf4ceb26761657811093f28b6f

2 files changed, 3 insertions, 9 deletions

diff --git a/Transceiver52M/device/usrp1/USRPDevice.cpp b/Transceiver52M/device/usrp1/USRPDevice.cpp
index 5d19514..a8f1638 100644
--- a/Transceiver52M/device/usrp1/USRPDevice.cpp
+++ b/Transceiver52M/device/usrp1/USRPDevice.cpp
@@ -100,7 +100,6 @@ int USRPDevice::open(const std::string &, int, bool)
   string rbf = "std_inband.rbf";
   //string rbf = "inband_1rxhb_1tx.rbf";
   m_uRx.reset();
-  if (!skipRx) {
   try {
     m_uRx = usrp_standard_rx_sptr(usrp_standard_rx::make(
                                         0, decimRate * tx_sps, 1, -1,
@@ -122,7 +121,6 @@ int USRPDevice::open(const std::string &, int, bool)
     m_uRx.reset();
     return -1;
   }
-  }
 
   try {
     m_uTx = usrp_standard_tx_sptr(usrp_standard_tx::make(
@@ -145,7 +143,7 @@ int USRPDevice::open(const std::string &, int, bool)
     return -1;
   }
 
-  if (!skipRx) m_uRx->stop();
+  m_uRx->stop();
   m_uTx->stop();
 
 #endif
@@ -188,10 +186,10 @@ bool USRPDevice::start()
 {
   LOGC(DDEV, INFO) << "starting USRP...";
 #ifndef SWLOOPBACK
-  if (!m_uRx && !skipRx) return false;
+  if (!m_uRx) return false;
   if (!m_uTx) return false;
 
-  if (!skipRx) m_uRx->stop();
+  m_uRx->stop();
   m_uTx->stop();
 
   writeLock.lock();
@@ -221,10 +219,7 @@ bool USRPDevice::start()
   isAligned = false;
 
 
-  if (!skipRx)
   started = (m_uRx->start() && m_uTx->start());
-  else
-  started = m_uTx->start();
   return started;
 #else
   gettimeofday(&lastReadTime,NULL);
diff --git a/Transceiver52M/device/usrp1/USRPDevice.h b/Transceiver52M/device/usrp1/USRPDevice.h
index 451b5a9..521d81d 100644
--- a/Transceiver52M/device/usrp1/USRPDevice.h
+++ b/Transceiver52M/device/usrp1/USRPDevice.h
@@ -55,7 +55,6 @@ private:
   unsigned long long samplesWritten;	///< number of samples sent to USRP
 
   bool started;			///< flag indicates USRP has started
-  bool skipRx;			///< set if USRP is transmit-only.
 
   static const unsigned int currDataSize_log2 = 21;
   static const unsigned long currDataSize = (1 << currDataSize_log2);