pk: remove unused method

It was only used for debugging an edge case.


(cherry picked from commit 18bbc381)

libdiscover/backends/PackageKitBackend/PKTransaction.cpp

@@ -69,7 +69,7 @@ void PKTransaction::trigger(PackageKit::Transaction::TransactionFlags flags)
                 //FIXME this state shouldn't exist
                 qWarning() << "Installing no packages found!";
                 for(auto app : m_apps) {
-                    qCDebug(LIBDISCOVER_BACKEND_LOG) << "app" << app << app->state() << static_cast<PackageKitResource*>(app)->packages();
+                    qCDebug(LIBDISCOVER_BACKEND_LOG) << "app" << app << app->state();
                 }
 
                 setStatus(Transaction::DoneWithErrorStatus);

libdiscover/backends/PackageKitBackend/PackageKitResource.h

@@ -46,8 +46,6 @@ class PackageKitResource : public AbstractResource
 
         void clearPackageIds() { m_packages.clear(); }
 
-        QMap<PackageKit::Transaction::Info, QStringList> packages() const { return m_packages; }
-
         PackageKitBackend* backend() const;
 
         static QString joinPackages(const QStringList& pkgids, const QString &_sep, const QString &shadowPackageName);