Removed unused code in multicanvas bar drawer that caused an exception on first draw (#795)
Removed unused code in multicanvas bar drawer that caused an exception on first draw (#795)


agamemnus/wavesurfer.js,ffxsam/wavesurfer.js,ale-grosselle/wavesurfer.js,ale-grosselle/wavesurfer.js,katspaugh/wavesurfer.js,agamemnus/wavesurfer.js,katspaugh/wavesurfer.js,ffxsam/wavesurfer.js