histogram.go
func (m *CirconusMetrics) RemoveHistogram(metric string) {
	m.hm.Lock()
	delete(m.histograms, metric)
	m.hm.Unlock()
}
func (m *CirconusMetrics) RemoveHistogram(metric string) {
	m.hm.Lock()
	delete(m.histograms, metric)
	m.hm.Unlock()
}
func ( m * CirconusMetrics ) RemoveHistogram ( metric string ) { m . hm . Lock ( ) delete ( m . histograms , metric ) m . hm . Unlock ( ) }
// RemoveHistogram removes a histogram
RemoveHistogram removes a histogram