radioInterface: Fix memleak during close()

destructors of pointers created through "new" must be destroyed manually
through "delete".

Change-Id: I10d37579f16bec89cc762f200a8951218305c708
diff --git a/Transceiver52M/radioInterface.cpp b/Transceiver52M/radioInterface.cpp
index 6245cfc..f488b0d 100644
--- a/Transceiver52M/radioInterface.cpp
+++ b/Transceiver52M/radioInterface.cpp
@@ -75,6 +75,14 @@
 
 void RadioInterface::close()
 {
+  for (std::vector<RadioBuffer*>::iterator it = sendBuffer.begin(); it != sendBuffer.end(); ++it)
+          delete *it;
+  for (std::vector<RadioBuffer*>::iterator it = recvBuffer.begin(); it != recvBuffer.end(); ++it)
+          delete *it;
+  for (std::vector<short*>::iterator it = convertSendBuffer.begin(); it != convertSendBuffer.end(); ++it)
+          delete[] *it;
+  for (std::vector<short*>::iterator it = convertRecvBuffer.begin(); it != convertRecvBuffer.end(); ++it)
+          delete[] *it;
   sendBuffer.resize(0);
   recvBuffer.resize(0);
   convertSendBuffer.resize(0);