accounts/abi: delete duplicate error check (ethereum#29136)

Author: gzliudan

accounts/abi/type.go

@@ -178,9 +178,6 @@ func NewType(t string, internalType string, components []ArgumentMarshaling) (ty
 				return Type{}, errors.New("abi: purely anonymous or underscored field is not supported")
 			}
 			fieldName := ResolveNameConflict(name, func(s string) bool { return used[s] })
-			if err != nil {
-				return Type{}, err
-			}
 			used[fieldName] = true
 			if !isValidFieldName(fieldName) {
 				return Type{}, fmt.Errorf("field %d has invalid name", idx)