Revert "core/state/pruner: remove unused error-return (ethereum#27273)"

This reverts commit b373df4.

Author: devopsbo3

core/state/pruner/bloom.go

@@ -127,6 +127,6 @@ func (bloom *stateBloom) Delete(key []byte) error { panic("not supported") }
 // reports whether the key is contained.
 // - If it says yes, the key may be contained
 // - If it says no, the key is definitely not contained.
-func (bloom *stateBloom) Contain(key []byte) bool {
-	return bloom.bloom.Contains(stateBloomHasher(key))
+func (bloom *stateBloom) Contain(key []byte) (bool, error) {
+	return bloom.bloom.Contains(stateBloomHasher(key)), nil
 }

core/state/pruner/pruner.go

@@ -146,7 +146,9 @@ func prune(snaptree *snapshot.Tree, root common.Hash, maindb ethdb.Database, sta
 			if _, exist := middleStateRoots[common.BytesToHash(checkKey)]; exist {
 				log.Debug("Forcibly delete the middle state roots", "hash", common.BytesToHash(checkKey))
 			} else {
-				if stateBloom.Contain(checkKey) {
+				if ok, err := stateBloom.Contain(checkKey); err != nil {
+					return err
+				} else if ok {
 					continue
 				}
 			}