No need to store to a QImage variable to not use it later

Makes clazy happier

qt5/tests/stress-poppler-dir.cpp

@@ -49,7 +49,7 @@ int main( int argc, char **argv )
 
 		for( int index = 0; index < doc->numPages(); ++index ) {
 		    Poppler::Page *page = doc->page( index );
-		    QImage image = page->renderToImage();
+		    page->renderToImage();
 		    page->pageSize();
 		    page->orientation();
 		    delete page;

qt5/tests/stress-poppler-qt5.cpp

@@ -56,7 +56,7 @@ int main( int argc, char **argv )
 
 		for( int index = 0; index < doc->numPages(); ++index ) {
 		    Poppler::Page *page = doc->page( index );
-		    QImage image = page->renderToImage();
+		    page->renderToImage();
 		    page->pageSize();
 		    page->orientation();
 		    delete page;