removed obsolete instrumentTrackView::updateName() and made track-button update on name-changes

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@1120 0778d3d1-df1d-0410-868b-ea421aaaa00d

include/instrument_track.h

@@ -231,8 +231,6 @@ private slots:
 	void activityIndicatorPressed( void );
 	void activityIndicatorReleased( void );
 
-	void updateName( void );
-
 	void midiInSelected( void );
 	void midiOutSelected( void );
 	void midiConfigChanged( void );