code: func (c *Container) remove(v uint16) (removed bool) {
  	if c.isArray() {
  		removed = c.arrayRemove(v)
  	} else if c.isRun() {
  		removed = c.runRemove(v)
  	} else {
  		removed = c.bitmapRemove(v)
  	}
  	return removed
  }
docs: // remove removes a value from the container.