static removeTimepoints(context) {
    const MpdUtils = shaka.dash.MpdUtils;
    const SegmentTemplate = shaka.dash.SegmentTemplate;

    const timelineNode = MpdUtils.inheritChild(context,
        SegmentTemplate.fromInheritance_, 'SegmentTimeline');
    goog.asserts.assert(timelineNode, 'timeline node not found');
    timelineNode.children = [];
  }
Removes all segments from timeline.

@param {!shaka.dash.DashParser.Context} context