Merge pull request ipfs/go-bitswap#373 from ipfs/refactor/unref-old-code

refactor: remove unused code

This commit was moved from ipfs/go-bitswap@ba0eb21

Author: Stebalien

bitswap/internal/sessiondata/sessiondata.go

@@ -3,7 +3,6 @@ package testutil
 import (
 	"math/rand"
 
-	bssd "github.com/ipfs/go-bitswap/internal/sessiondata"
 	bsmsg "github.com/ipfs/go-bitswap/message"
 	"github.com/ipfs/go-bitswap/wantlist"
 	blocks "github.com/ipfs/go-block-format"
@@ -66,24 +65,6 @@ func GeneratePeers(n int) []peer.ID {
 	return peerIds
 }
 
-// GenerateOptimizedPeers creates n peer ids,
-// with optimization fall off up to optCount, curveFunc to scale it
-func GenerateOptimizedPeers(n int, optCount int, curveFunc func(float64) float64) []bssd.OptimizedPeer {
-	peers := GeneratePeers(n)
-	optimizedPeers := make([]bssd.OptimizedPeer, 0, n)
-	for i, peer := range peers {
-		var optimizationRating float64
-		if i <= optCount {
-			optimizationRating = 1.0 - float64(i)/float64(optCount)
-		} else {
-			optimizationRating = 0.0
-		}
-		optimizationRating = curveFunc(optimizationRating)
-		optimizedPeers = append(optimizedPeers, bssd.OptimizedPeer{Peer: peer, OptimizationRating: optimizationRating})
-	}
-	return optimizedPeers
-}
-
 var nextSession uint64
 
 // GenerateSessionID make a unit session identifier.