gc: remove segment loop dependency

While splitting GC into two parts, bloom filter generation and bloom
filter sending, we missed to remove segments loop dependency from boom
filter sending part.

Change-Id: I48f213b0c0f8583e24fbb2bdcbfced518abe74cb

satellite/gc.go

@@ -25,7 +25,6 @@ import (
 	version_checker "storj.io/storj/private/version/checker"
 	"storj.io/storj/satellite/gc/sender"
 	"storj.io/storj/satellite/metabase"
-	"storj.io/storj/satellite/metabase/segmentloop"
 	"storj.io/storj/satellite/overlay"
 )
 
@@ -56,10 +55,6 @@ type GarbageCollection struct {
 		DB overlay.DB
 	}
 
-	Metainfo struct {
-		SegmentLoop *segmentloop.Service
-	}
-
 	GarbageCollection struct {
 		Sender *sender.Service
 	}
@@ -128,23 +123,6 @@ func NewGarbageCollection(log *zap.Logger, full *identity.FullIdentity, db DB,
 		peer.Overlay.DB = peer.DB.OverlayCache()
 	}
 
-	{ // setup metainfo
-		// Garbage Collection creates its own instance of the loop here. Since
-		// GC runs infrequently, this shouldn't add too much extra load on the metabase db.
-		// As long as garbage collection is the only observer joining the loop, then by default
-		// the loop will only run when the garbage collection joins (which happens every GarbageCollection.Interval)
-		peer.Metainfo.SegmentLoop = segmentloop.New(
-			log.Named("segmentloop"),
-			config.Metainfo.SegmentLoop,
-			metabaseDB,
-		)
-		peer.Services.Add(lifecycle.Item{
-			Name:  "metainfo:segmentloop",
-			Run:   peer.Metainfo.SegmentLoop.Run,
-			Close: peer.Metainfo.SegmentLoop.Close,
-		})
-	}
-
 	{ // setup garbage collection
 		peer.GarbageCollection.Sender = sender.NewService(
 			peer.Log.Named("gc-sender"),