Removed unnecessary middleware

middleware/IPToHost.go

@@ -4,21 +4,11 @@ import (
 	"net"
 	"time"
 
-	"github.com/aerogo/aero"
 	cache "github.com/patrickmn/go-cache"
 )
 
 var ipToHosts = cache.New(60*time.Minute, 30*time.Minute)
 
-// IPToHost middleware tries to find domain names for the given IP.
-func IPToHost() aero.Middleware {
-	return func(ctx *aero.Context, next func()) {
-		next()
-
-		go findHostsForIP(ctx.RealIP())
-	}
-}
-
 // GetHostsForIP returns all host names for the given IP (if cached).
 func GetHostsForIP(ip string) []string {
 	hosts, found := ipToHosts.Get(ip)