Qt: Put Wii SD card path and SD sync folder fields in the WiiPane.

Source/Core/DolphinQt/Settings/PathPane.h

@@ -24,13 +24,11 @@ private:
   void BrowseDump();
   void BrowseLoad();
   void BrowseResourcePack();
-  void BrowseSDCard();
   void BrowseWFS();
   QGroupBox* MakeGameFolderBox();
   QGridLayout* MakePathsLayout();
   void RemovePath();
 
-  void OnSDCardPathChanged();
   void OnNANDPathChanged();
 
   QListWidget* m_path_list;
@@ -39,7 +37,6 @@ private:
   QLineEdit* m_dump_edit;
   QLineEdit* m_load_edit;
   QLineEdit* m_resource_pack_edit;
-  QLineEdit* m_sdcard_edit;
   QLineEdit* m_wfs_edit;
 
   QPushButton* m_remove_path;