Cancel the periodic publication of the specified category. Return 0 on success, and a non‐zero value if the category is not scheduled for publication. Any scheduled publication of category is either canceled or completed before this method returns. The behavior is undefined unless category is a valid address supplied by the balm::MetricRegistry owned by metricsManager. Note that if a default publication schedule has been set (using setDefaultSchedule), then category will continue to be published as part of that scheduled default publication; to exclude a category from any publication, clients can disable the category using the MetricsManager object supplied at construction.