Remove conditions for no longer supported Qt versions

src/imageformats/xcf.cpp

@@ -962,11 +962,7 @@ bool XCFImageFormat::loadImageProperties(QDataStream &xcf_io, XCFImage &xcf_imag
         case PROP_PARASITES:
             while (!property.atEnd()) {
                 char *tag;
-#if QT_VERSION < QT_VERSION_CHECK(6, 7, 0)
-                quint32 size;
-#else
                 qint64 size;
-#endif
 
                 property.readBytes(tag, size);