Depricate: go-libp2p is removing database-backed peerstore (pstoreds)

[shahzadlone]

Note:

// Deprecated: The database-backed peerstore will be removed from go-libp2p in the future.
// Use the memory peerstore (pstoremem) instead.
// For more details see https://github.com/libp2p/go-libp2p/issues/2329
// and https://github.com/libp2p/go-libp2p/issues/2355.

In net/node.go we use "github.com/libp2p/go-libp2p/p2p/host/peerstore/pstoreds" that creates our peerstore from the underlying defra rootstore with the appropriate prefix. However now if we are forced to use pstoremem

[nasdf]

Related #1680

[shahzadlone]

#1889 will suppress this linter warning but leaving a todo in source-code as the dependencies are piling up.