Don't show Old English as an available option

src/mnemonics/electrum-words.cpp

@@ -349,8 +349,7 @@ namespace crypto
         Language::Singleton<Language::English>::instance(),
         Language::Singleton<Language::Spanish>::instance(),
         Language::Singleton<Language::Portuguese>::instance(),
-        Language::Singleton<Language::Japanese>::instance(),
-        Language::Singleton<Language::OldEnglish>::instance()
+        Language::Singleton<Language::Japanese>::instance()
       });
       for (std::vector<Language::Base*>::iterator it = language_instances.begin();
         it != language_instances.end(); it++)

src/mnemonics/electrum-words.h

@@ -59,6 +59,7 @@ namespace crypto
   namespace ElectrumWords
   {
 
+    const std::string old_language_name = "OldEnglish";
     /*!
      * \brief Converts seed words to bytes (secret key).
      * \param  words           String containing the words separated by spaces.

src/simplewallet/simplewallet.cpp

@@ -507,7 +507,7 @@ bool simple_wallet::new_wallet(const std::string &wallet_file, const std::string
   // convert rng value to electrum-style word list
   std::string electrum_words;
 
-  bool was_deprecated_wallet = (old_language == "OldEnglish") ||
+  bool was_deprecated_wallet = (old_language == crypto::ElectrumWords::old_language_name) ||
     crypto::ElectrumWords::get_is_old_style_seed(m_electrum_seed);
 
   std::string mnemonic_language = old_language;