compiler warnings ( unused definitions ) fixed

src/common/QskGraduation.cpp

@@ -17,8 +17,6 @@ namespace Engine
 {
     // What about using qskFuzzyCompare and friends ???
 
-    const double _eps = 1.0e-6;
-
     inline int fuzzyCompare( double value1, double value2, double intervalSize )
     {
         const double eps = std::abs( 1.0e-6 * intervalSize );

src/common/QskMetaInvokable.cpp

@@ -26,15 +26,6 @@ static void qskRegisterMetaInvokable()
 
 Q_CONSTRUCTOR_FUNCTION( qskRegisterMetaInvokable )
 
-static inline void* qskMetaTypeCreate( int type, const void* copy )
-{
-#if QT_VERSION >= QT_VERSION_CHECK( 6, 0, 0 )
-    return QMetaType( type ).create( copy );
-#else
-    return QMetaType::create( type, copy );
-#endif
-}
-
 namespace
 {
     using CallFunction = QObjectPrivate::StaticMetaCallFunction;