Remove drivechain support using OP_COUNT_ACKS

src/serialize.h

@@ -373,7 +373,6 @@ I ReadVarInt(Stream& is)
 
 #define FLATDATA(obj) REF(CFlatData((char*)&(obj), (char*)&(obj) + sizeof(obj)))
 #define VARINT(obj) REF(WrapVarInt(REF(obj)))
-#define COMPACTSIZE(obj) REF(CCompactSize(REF(obj)))
 #define LIMITED_STRING(obj,n) REF(LimitedString< n >(REF(obj)))
 
 /** 
@@ -444,28 +443,6 @@ public:
     }
 };
 
-class CCompactSize
-{
-protected:
-    uint64_t &n;
-public:
-    CCompactSize(uint64_t& nIn) : n(nIn) { }
-
-    unsigned int GetSerializeSize(int, int) const {
-        return GetSizeOfCompactSize(n);
-    }
-
-    template<typename Stream>
-    void Serialize(Stream &s, int, int) const {
-        WriteCompactSize<Stream>(s, n);
-    }
-
-    template<typename Stream>
-    void Unserialize(Stream& s, int, int) {
-        n = ReadCompactSize<Stream>(s);
-    }
-};
-
 template<size_t Limit>
 class LimitedString
 {