ms: prune ancient, unused code parts

Change-Id: I36dcb7ba9364b1eafbaa7267cde3574d82da5dd2
diff --git a/Transceiver52M/ms/ms.cpp b/Transceiver52M/ms/ms.cpp
index 4ae8668..f1a915c 100644
--- a/Transceiver52M/ms/ms.cpp
+++ b/Transceiver52M/ms/ms.cpp
@@ -22,19 +22,13 @@
 #include "GSMCommon.h"
 #include <atomic>
 #include <cassert>
-#include <complex>
+
 #include <iostream>
 #include <cstdlib>
 #include <cstdio>
-#include <thread>
-#include <fstream>
 
 #include "ms.h"
 
-extern "C" {
-#include "sch.h"
-}
-
 #include "threadsched.h"
 
 dummylog ms_trx::dummy_log;