Revert "Stop the 'Organise files' window constantly resizing. Fixes issue 968."

This reverts commit 9cfe834ef4.

src/ui/organisedialog.cpp

@@ -237,6 +237,12 @@ void OrganiseDialog::UpdatePreviews() {
       ui_->preview->addItem(QDir::toNativeSeparators(filename));
     }
   }
+
+  adjustSize();
+}
+
+QSize OrganiseDialog::sizeHint() const {
+  return QSize(650, 0);
 }
 
 void OrganiseDialog::Reset() {

src/ui/organisedialog.h

@@ -45,6 +45,8 @@ public:
   static const char* kDefaultFormat;
   static const char* kSettingsGroup;
 
+  QSize sizeHint() const;
+
   void SetDestinationModel(QAbstractItemModel* model, bool devices = false);
 
   int SetSongs(const SongList& songs);