Don't compile unused code to write a playlist to a CD.

This code isn't currently callable from a running frontend.  It needs
to be updated to handle storage groups and the new user interface
dialogs.  Not compiling it eliminates the last warning message in the
mythplugins directory tree.

mythplugins/mythmusic/mythmusic/playlist.cpp

@@ -150,10 +150,12 @@ Playlist::Playlist(void) :
     m_name(tr("oops")),
     m_parent(NULL),
     m_changed(false),
-    m_doSave(true),
+    m_doSave(true)
+#ifdef CD_WRTITING_FIXED
     m_progress(NULL),
     m_proc(NULL),
     m_procExitVal(0)
+#endif
 {
 }
 
@@ -1130,8 +1132,8 @@ MusicMetadata* Playlist::getRawSongAt(int pos) const
 }
 
 // Here begins CD Writing things. ComputeSize, CreateCDMP3 & CreateCDAudio
-// FIXME non of this is currently used
-
+// FIXME none of this is currently used
+#ifdef CD_WRTITING_FIXED
 void Playlist::computeSize(double &size_in_MB, double &size_in_sec)
 {
     //double child_MB;
@@ -1457,3 +1459,4 @@ int Playlist::CreateCDAudio(void)
 {
     return -1;
 }
+#endif

mythplugins/mythmusic/mythmusic/playlist.h

@@ -112,9 +112,11 @@ class Playlist : public QObject
 
     void resync(void);
 
+#ifdef CD_WRTITING_FIXED
     void computeSize(double &size_in_MB, double &size_in_sec);
     int CreateCDMP3(void);
     int CreateCDAudio(void);
+#endif
 
   private slots:
     void mkisofsData(int fd);
@@ -134,9 +136,11 @@ class Playlist : public QObject
     PlaylistContainer    *m_parent;
     bool                  m_changed;
     bool                  m_doSave;
+#ifdef CD_WRTITING_FIXED
     MythProgressDialog   *m_progress;
     MythSystemLegacy     *m_proc;
     uint                  m_procExitVal;
+#endif
 };
 
 #endif