Remove unnecessary code

ubuntu/backend/mpdbackend.cpp

@@ -155,12 +155,6 @@ void MPDBackend::setCoverFetch(bool s) {
     Covers::self()->setFetchCovers(s);
 }
 
-void MPDBackend::resetAllModels() { //TODO: Better idea?
-    MusicLibraryModel::self()->resetModel();
-    AlbumsModel::self()->resetModel();
-    PlaylistsModel::self()->resetModel();
-}
-
 void MPDBackend::playPause() {
     switch (MPDStatus::self()->state()) {
     case MPDState_Playing:

ubuntu/backend/mpdbackend.h

@@ -111,7 +111,6 @@ public:
     Q_INVOKABLE int getCrossfade() { return MPDStatus::self()->crossFade(); }
     Q_INVOKABLE QStringList getOutputs () { return outputSettings; }
     Q_INVOKABLE QString getReplayGain () { return replayGainSetting; }
-    Q_INVOKABLE void resetAllModels();
 
     PlayQueueProxyModel * getPlayQueueProxyModel() { return &playQueueProxyModel; }
     MusicLibraryProxyModel * getArtistsProxyModel() { return &artistsProxyModel; }

ubuntu/qml/cantata/backend/SettingsBackend.qml

@@ -55,7 +55,6 @@ Item {
         onContentsChanged: {
             if (contents != undefined) {
                 backend.setCoverFetch(contents["coverFetch"]) //TODO: Untick fetch checkbox => Delete saved images => Reopen app => Tick fetch checkbox => First few album covers are not loaded
-//                backend.resetAllModels() //TODO-R: Remove code
                 fetchCoversChanged()
             }
         }