remove negative check

shared/src/ledger/native_vp/multitoken.rs

@@ -8,7 +8,7 @@ use crate::ledger::native_vp::{self, Ctx, NativeVp};
 use crate::ledger::storage;
 use crate::ledger::vp_env::VpEnv;
 use crate::proto::Tx;
-use crate::types::address::{self, Address, InternalAddress};
+use crate::types::address::{Address, InternalAddress};
 use crate::types::storage::{Key, KeySeg};
 use crate::types::token::{
     is_any_minted_balance_key, is_any_minter_key, is_any_token_balance_key,
@@ -56,15 +56,10 @@ where
         let mut changes = HashMap::new();
         let mut mints = HashMap::new();
         for key in keys_changed {
-            if let Some([token, owner]) = is_any_token_balance_key(key) {
+            if let Some([token, _]) = is_any_token_balance_key(key) {
                 let pre: Amount = self.ctx.read_pre(key)?.unwrap_or_default();
                 let post: Amount = self.ctx.read_post(key)?.unwrap_or_default();
                 let diff = post.change() - pre.change();
-                if diff.is_negative()
-                    && !(verifiers.contains(owner) || *owner == address::masp())
-                {
-                    return Ok(false);
-                }
                 match changes.get_mut(token) {
                     Some(change) => *change += diff,
                     None => _ = changes.insert(token, diff),