(#278): What should we use for de-duping messages within P2P?

[github-actions]

TODO(pokt-network#388): generalize to use the shared `FIFOMempool` type (in `utility/types/mempool.go` at the time of writing) in here as well for this.

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pocket/p2p/raintree/network.go

Lines 32 to 37 in 1c71d7c

	// TODO (#278): What should we use for de-duping messages within P2P?
	// TODO(#388): generalize to use the shared `FIFOMempool` type (in `utility/types/mempool.go` at the time of writing) in here as well for this.
	nonceSet map[uint64]struct{}
	nonceList []uint64
	mempoolMaxNonces uint64
	nonceSetMutex sync.Mutex

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This issue was generated by todo-issue based on a TODO comment in 1c71d7c.