Cleanup: removed dead code, and use C99 typedefs for int64 (supported by all modern c++ compilers)

src/uint256.h

@@ -11,16 +11,8 @@
 #include <string>
 #include <vector>
 
-#if defined(_MSC_VER) || defined(__BORLANDC__)
-typedef __int64  int64;
-typedef unsigned __int64  uint64;
-#else
 typedef long long  int64;
 typedef unsigned long long  uint64;
-#endif
-#if defined(_MSC_VER) && _MSC_VER < 1300
-#define for  if (false) ; else for
-#endif
 
 
 inline int Testuint256AdHoc(std::vector<std::string> vArg);