raft/tracker: remove unused Inflights.FreeFirstOne
@@ -113,10 +113,6 @@ func (in *Inflights) FreeLE(to uint64) {
}
}
-// FreeFirstOne releases the first inflight. This is a no-op if nothing is
-// inflight.
-func (in *Inflights) FreeFirstOne() { in.FreeLE(in.buffer[in.start]) }
-
// Full returns true if no more messages can be sent at the moment.
func (in *Inflights) Full() bool {
return in.count == in.size
