Removed check for Qt less than 5

PostProcessorGrayPlugin.cc

@@ -120,7 +120,4 @@ void PostProcessorGrayscalePlugin::postProcess(ACG::GLState* _glstate, const std
 }
 
 
-#if QT_VERSION < 0x050000
-  Q_EXPORT_PLUGIN2( postprocessorgrayscaleplugin , PostProcessorGrayscalePlugin );
-#endif
 

PostProcessorGrayPlugin.hh

@@ -62,9 +62,7 @@ class PostProcessorGrayscalePlugin : public QObject, BaseInterface, PostProcesso
    Q_INTERFACES(BaseInterface)
    Q_INTERFACES(PostProcessorInterface)
 
-#if QT_VERSION >= 0x050000
   Q_PLUGIN_METADATA(IID "org.OpenFlipper.Plugins.Plugin-PostProcessorGrayscale")
-#endif
 
   public:
    PostProcessorGrayscalePlugin();