c++11: don't forward-declare types used in maps

src/keystore.cpp

@@ -7,8 +7,6 @@
 
 #include "crypter.h"
 #include "key.h"
-#include "script/script.h"
-#include "script/standard.h"
 #include "util.h"
 
 #include <boost/foreach.hpp>

src/keystore.h

@@ -8,14 +8,13 @@
 
 #include "key.h"
 #include "pubkey.h"
+#include "script/script.h"
+#include "script/standard.h"
 #include "sync.h"
 
 #include <boost/signals2/signal.hpp>
 #include <boost/variant.hpp>
 
-class CScript;
-class CScriptID;
-
 /** A virtual base class for key stores */
 class CKeyStore
 {