Revert "core/state/pruner: track number of skipped items during state…

… pruning (ethereum#28368)"

This reverts commit 225b77f.

core/state/pruner/pruner.go

@@ -125,12 +125,12 @@ func prune(snaptree *snapshot.Tree, root common.Hash, maindb ethdb.Database, sta
 	// dangling node is the state root is super low. So the dangling nodes in
 	// theory will never ever be visited again.
 	var (
-		skipped, count int
-		size           common.StorageSize
-		pstart         = time.Now()
-		logged         = time.Now()
-		batch          = maindb.NewBatch()
-		iter           = maindb.NewIterator(nil, nil)
+		count  int
+		size   common.StorageSize
+		pstart = time.Now()
+		logged = time.Now()
+		batch  = maindb.NewBatch()
+		iter   = maindb.NewIterator(nil, nil)
 	)
 	for iter.Next() {
 		key := iter.Key()
@@ -149,7 +149,6 @@ func prune(snaptree *snapshot.Tree, root common.Hash, maindb ethdb.Database, sta
 				log.Debug("Forcibly delete the middle state roots", "hash", common.BytesToHash(checkKey))
 			} else {
 				if stateBloom.Contain(checkKey) {
-					skipped += 1
 					continue
 				}
 			}
@@ -166,7 +165,7 @@ func prune(snaptree *snapshot.Tree, root common.Hash, maindb ethdb.Database, sta
 				eta = time.Duration(left/speed) * time.Millisecond
 			}
 			if time.Since(logged) > 8*time.Second {
-				log.Info("Pruning state data", "nodes", count, "skipped", skipped, "size", size,
+				log.Info("Pruning state data", "nodes", count, "size", size,
 					"elapsed", common.PrettyDuration(time.Since(pstart)), "eta", common.PrettyDuration(eta))
 				logged = time.Now()
 			}