Remove unused alphabetical translation vector

m_AlphabeticalTranslation was written but never read; drop it along with
refreshAlphabeticalTranslation, ByName, and the LessThanWrapper helper.

Author: Al12rs

src/downloadmanager.cpp

@@ -868,38 +868,6 @@ void DownloadManager::removeFile(int index, bool deleteFile)
   m_DownloadRemoved(index);
 }
 
-class LessThanWrapper
-{
-public:
-  LessThanWrapper(DownloadManager* manager) : m_Manager(manager) {}
-  bool operator()(int LHS, int RHS)
-  {
-    return m_Manager->getFileName(LHS).compare(m_Manager->getFileName(RHS),
-                                               Qt::CaseInsensitive) < 0;
-  }
-
-private:
-  DownloadManager* m_Manager;
-};
-
-bool DownloadManager::ByName(int LHS, int RHS)
-{
-  return m_ActiveDownloads[LHS]->m_FileName < m_ActiveDownloads[RHS]->m_FileName;
-}
-
-void DownloadManager::refreshAlphabeticalTranslation()
-{
-  m_AlphabeticalTranslation.clear();
-  int pos = 0;
-  for (QVector<DownloadInfo*>::iterator iter = m_ActiveDownloads.begin();
-       iter != m_ActiveDownloads.end(); ++iter, ++pos) {
-    m_AlphabeticalTranslation.push_back(pos);
-  }
-
-  std::sort(m_AlphabeticalTranslation.begin(), m_AlphabeticalTranslation.end(),
-            LessThanWrapper(this));
-}
-
 void DownloadManager::restoreDownload(int index)
 {
 
@@ -2405,7 +2373,6 @@ void DownloadManager::metaDataChanged()
         DirWatcherManager::Guard dirWatcherGuard = m_DirWatcher.scopedGuard();
         info->setName(getDownloadFileName(newName), true);
       }
-      refreshAlphabeticalTranslation();
       notifyRowChanged(index);
       if (!info->m_Output.isOpen() &&
           !info->m_Output.open(QIODevice::WriteOnly | QIODevice::Append)) {

src/downloadmanager.h

@@ -663,10 +663,6 @@ private slots:
 
   void removeFile(int index, bool deleteFile);
 
-  void refreshAlphabeticalTranslation();
-
-  bool ByName(int LHS, int RHS);
-
   QString getFileNameFromNetworkReply(QNetworkReply* reply);
 
   void setState(DownloadInfo* info, DownloadManager::DownloadState state);
@@ -694,7 +690,6 @@ private slots:
 
   QString m_OutputDirectory;
   std::set<int> m_RequestIDs;
-  QVector<int> m_AlphabeticalTranslation;
 
   DirWatcherManager m_DirWatcher;