Remove unused Print/PrintHex functions

You can just use HexStr(script) or script.ToString() for debugging, no
need for these extra functions.

src/script.h

@@ -691,12 +691,6 @@ public:
     void SetDestination(const CTxDestination& address);
     void SetMultisig(int nRequired, const std::vector<CPubKey>& keys);
 
-
-    void PrintHex() const
-    {
-        LogPrintf("CScript(%s)\n", HexStr(begin(), end(), true).c_str());
-    }
-
     std::string ToString() const
     {
         std::string str;
@@ -720,11 +714,6 @@ public:
         return str;
     }
 
-    void print() const
-    {
-        LogPrintf("%s\n", ToString());
-    }
-
     CScriptID GetID() const
     {
         return CScriptID(Hash160(*this));