Remove deprecated Optional.h

src/core/Optional.h

@@ -1,93 +0,0 @@
-/*
- *  Copyright (C) 2017 KeePassXC Team <team@keepassxc.org>
- *
- *  This program is free software: you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation, either version 2 or (at your option)
- *  version 3 of the License.
- *
- *  This program is distributed in the hope that it will be useful,
- *  but WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- *  GNU General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License
- *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
- */
-
-#ifndef OPTIONAL_H
-#define OPTIONAL_H
-
-/*
- * This utility class is for providing basic support for an option type.
- * It can be replaced by std::optional (C++17) or
- * std::experimental::optional (C++11) when they become fully supported
- * by all the compilers.
- */
-
-template <typename T>
-class Optional
-{
-public:
-   
-    // None
-    Optional() :
-        m_hasValue(false),
-        m_value()
-    { };   
- 
-    // Some T
-    Optional(const T& value) :
-        m_hasValue(true),
-        m_value(value)
-    { };
-
-    // Copy
-    Optional(const Optional& other) :
-        m_hasValue(other.m_hasValue),
-        m_value(other.m_value)
-    { };
-
-    const Optional& operator=(const Optional& other)
-    {
-        m_hasValue = other.m_hasValue;
-        m_value = other.m_value;
-        return *this;
-    }
-
-    bool operator==(const Optional& other) const
-    {
-        if(m_hasValue)
-            return other.m_hasValue && m_value == other.m_value;
-        else
-            return !other.m_hasValue;
-    }
-
-    bool operator!=(const Optional& other) const
-    {
-        return !(*this == other);
-    }
-
-    bool hasValue() const
-    {
-        return m_hasValue;
-    }
-
-    T valueOr(const T& other) const
-    {
-        return m_hasValue ? m_value : other;
-    }
-    
-    Optional static makeOptional(const T& value)
-    {
-        return Optional(value);
-    }
-
-
-private:
-
-    bool m_hasValue;
-    T m_value;
-};
-
-#endif // OPTIONAL_H