Revert "Linux (nss) implementations of RSAPrivateKey and SignatureCreator"

base/crypto/signature_creator_win.cc

Index: base/crypto/signature_creator_win.cc
diff --git a/base/crypto/signature_creator_win.cc b/base/crypto/signature_creator_win.cc
index 700a3094d4708d2399be385d06c47d22412b6833..78e496420da7524bce1cd080c47837c5d997c733 100644
--- a/base/crypto/signature_creator_win.cc
+++ b/base/crypto/signature_creator_win.cc
@@ -23,8 +23,6 @@ SignatureCreator* SignatureCreator::Create(RSAPrivateKey* key) {
   return result.release();
 }
 
-SignatureCreator::SignatureCreator() : hash_object_(0) {}
-
 SignatureCreator::~SignatureCreator() {
   if (hash_object_) {
     if (!CryptDestroyHash(hash_object_))