Removing what seems to be an uneeded call to determine_y_axis_scale in the RcovGchartGrapher
Removing what seems to be an uneeded call to determine_y_axis_scale in the RcovGchartGrapher

metricfu/metric_fu,jscruggs/metric_fu,ManageIQ/metric_fu,metricfu/metric_fu,openeducation/metric_fu,metricfu/metric_fu