core: fix staticcheck warnings (#20384)

* core: fix staticcheck warnings * fix goimports
2019-11-27 09:50:30 +01:00
parent c4844e9ee2
commit 7b189d6f1f
4 changed files with 32 additions and 14 deletions
--- a/core/vm/stack.go
+++ b/core/vm/stack.go
@ -74,13 +74,6 @@ func (st *Stack) Back(n int) *big.Int {
 	return st.data[st.len()-n-1]
 }

-func (st *Stack) require(n int) error {
-	if st.len() < n {
-		return fmt.Errorf("stack underflow (%d <=> %d)", len(st.data), n)
-	}
-	return nil
-}
-
 // Print dumps the content of the stack
 func (st *Stack) Print() {
 	fmt.Println("### stack ###")