removed operator= and copy ctor from classes where they only duplicated the behaviour of the default implementations that C++ generates automatically

src/blackmisc/avaltitude.h

@@ -78,19 +78,6 @@ public:
      */
     CAltitude(BlackMisc::PhysicalQuantities::CLength altitude, bool msl) : BlackMisc::PhysicalQuantities::CLength(altitude), m_msl(msl) {}
 
-    /*!
-     * \brief Copy constructor
-     * \param other
-     */
-    CAltitude(const CAltitude &other) : BlackMisc::PhysicalQuantities::CLength(other), m_msl(other.m_msl) {}
-
-    /*!
-     * \brief Assignment operator =
-     * \param other
-     * @return
-     */
-    CAltitude &operator =(const CAltitude &other);
-
     /*!
      * \brief Equal operator ==
      * \param other