refactor (minor)

src/Playback/PlaybackManager.ts

@@ -1297,7 +1297,6 @@ export class PlaybackManager implements IPlaybackParametersListener {
         for (const measure of this.musicPartManager.MusicSheet.SourceMeasures) {
             const beatLengthInMs: number = 60000.0 / measure.TempoInBPM;
             totalDuration += measure.Duration.RealValue * beatLengthInMs / beatRealValue;
-
         }
         return totalDuration;
     }