1 files changed, 0 insertions, 31 deletions
diff --git a/tests/helper/trie.go b/tests/helper/trie.go
deleted file mode 100644
index 9e666d333..000000000
--- a/tests/helper/trie.go
+++ /dev/null
@@ -1,31 +0,0 @@
-package helper
-
-import "github.com/ethereum/go-ethereum/trie"
-
-type MemDatabase struct {
-	db map[string][]byte
-}
-
-func NewMemDatabase() (*MemDatabase, error) {
-	db := &MemDatabase{db: make(map[string][]byte)}
-	return db, nil
-}
-func (db *MemDatabase) Put(key []byte, value []byte) {
-	db.db[string(key)] = value
-}
-func (db *MemDatabase) Get(key []byte) ([]byte, error) {
-	return db.db[string(key)], nil
-}
-func (db *MemDatabase) Delete(key []byte) error {
-	delete(db.db, string(key))
-	return nil
-}
-func (db *MemDatabase) Print()              {}
-func (db *MemDatabase) Close()              {}
-func (db *MemDatabase) LastKnownTD() []byte { return nil }
-
-func NewTrie() *trie.Trie {
-	db, _ := NewMemDatabase()
-
-	return trie.New(nil, db)
-}