Fix text size problem on Windows with custom DPI. (closes #758)

On Windows FontMetrics seem to be broken when custom DPI is set by the user.

src/qtlibtorrent/torrentmodel.cpp

@@ -29,7 +29,6 @@
  */
 
 #include <QDebug>
-#include <QFontMetrics>
 
 #include "torrentmodel.h"
 #include "torrentpersistentdata.h"
@@ -305,19 +304,6 @@ QVariant TorrentModel::data(const QModelIndex &index, int role) const
   if (!index.isValid()) return QVariant();
   try {
     if (index.row() >= 0 && index.row() < rowCount() && index.column() >= 0 && index.column() < columnCount())
-      if (role == Qt::SizeHintRole)
-      {
-        QSize size(m_torrents[index.row()]->data(index.column(), role).toSize());
-        QFont font;
-        QFontMetrics fm(font);
-        QIcon icon(":/Icons/skin/downloading.png");
-        int fm_height(fm.height());
-        QList<QSize> ic_sizes(icon.availableSizes());
-        int icon_height(ic_sizes[0].height());
-        size.setHeight(fm_height > icon_height ? fm_height : icon_height);
-        return QVariant(size);
-      }
-    else
       return m_torrents[index.row()]->data(index.column(), role);
   } catch(invalid_handle&) {}
   return QVariant();