counter.go
func (m *CirconusMetrics) RemoveCounterFunc(metric string) {
	m.cfm.Lock()
	defer m.cfm.Unlock()
	delete(m.counterFuncs, metric)
}
func (m *CirconusMetrics) RemoveCounterFunc(metric string) {
	m.cfm.Lock()
	defer m.cfm.Unlock()
	delete(m.counterFuncs, metric)
}
func ( m * CirconusMetrics ) RemoveCounterFunc ( metric string ) { m . cfm . Lock ( ) defer m . cfm . Unlock ( ) delete ( m . counterFuncs , metric ) }
// RemoveCounterFunc removes the named counter function
RemoveCounterFunc removes the named counter function