Fixed client compile

src/misc/memtracker.h

@@ -5,7 +5,7 @@
 
 namespace memtrack {
 #define TRACK_OBJECT_ALLOCATION
-#ifdef TRACK_OBJECT_ALLOCATION
+#if defined(FEATURE_MEMTRACK) && defined(TRACK_OBJECT_ALLOCATION)
     extern void allocated(const char* name, void* address);
     extern void freed(const char* name, void* address);
     template <typename T>

src/protocol/PacketDecoder.h

@@ -12,10 +12,6 @@ namespace ts::connection {
     class CryptHandler;
 }
 
-namespace ts::stats {
-    class ConnectionStatistics;
-}
-
 namespace ts::protocol {
     enum struct PacketProcessResult {
         SUCCESS,