wallet2: remove {set|get}_default_decimal_point and use the same funcs under cryptonote:: instead

src/simplewallet/simplewallet.cpp

@@ -1384,7 +1384,7 @@ bool simple_wallet::set_unit(const std::vector<std::string> &args/* = std::vecto
   const auto pwd_container = get_and_verify_password();
   if (pwd_container)
   {
-    m_wallet->set_default_decimal_point(decimal_point);
+    cryptonote::set_default_decimal_point(decimal_point);
     m_wallet->rewrite(m_wallet_file, pwd_container->password());
   }
   return true;
@@ -1818,7 +1818,7 @@ bool simple_wallet::set_variable(const std::vector<std::string> &args)
     success_msg_writer() << "priority = " << m_wallet->get_default_priority();
     success_msg_writer() << "confirm-missing-payment-id = " << m_wallet->confirm_missing_payment_id();
     success_msg_writer() << "ask-password = " << m_wallet->ask_password();
-    success_msg_writer() << "unit = " << cryptonote::get_unit(m_wallet->get_default_decimal_point());
+    success_msg_writer() << "unit = " << cryptonote::get_unit(cryptonote::get_default_decimal_point());
     success_msg_writer() << "min-outputs-count = " << m_wallet->get_min_output_count();
     success_msg_writer() << "min-outputs-value = " << cryptonote::print_money(m_wallet->get_min_output_value());
     success_msg_writer() << "merge-destinations = " << m_wallet->merge_destinations();

src/wallet/wallet2.cpp

@@ -3410,16 +3410,6 @@ bool wallet2::parse_payment_id(const std::string& payment_id_str, crypto::hash&
   return false;
 }
 //----------------------------------------------------------------------------------------------------
-void wallet2::set_default_decimal_point(unsigned int decimal_point)
-{
-  cryptonote::set_default_decimal_point(decimal_point);
-}
-//----------------------------------------------------------------------------------------------------
-unsigned int wallet2::get_default_decimal_point() const
-{
-  return cryptonote::get_default_decimal_point();
-}
-//----------------------------------------------------------------------------------------------------
 bool wallet2::prepare_file_names(const std::string& file_path)
 {
   do_prepare_file_names(file_path, m_keys_file, m_wallet_file);

src/wallet/wallet2.h

@@ -825,8 +825,6 @@ namespace tools
     void confirm_missing_payment_id(bool always) { m_confirm_missing_payment_id = always; }
     bool ask_password() const { return m_ask_password; }
     void ask_password(bool always) { m_ask_password = always; }
-    void set_default_decimal_point(unsigned int decimal_point);
-    unsigned int get_default_decimal_point() const;
     void set_min_output_count(uint32_t count) { m_min_output_count = count; }
     uint32_t get_min_output_count() const { return m_min_output_count; }
     void set_min_output_value(uint64_t value) { m_min_output_value = value; }