fix clippy collapsible match

Author: orriin

pallets/subtensor/src/lib.rs

@@ -2403,18 +2403,17 @@ where
         _len: usize,
     ) -> TransactionValidity {
         // Check if the call is one of the balance transfer types we want to reject
-        if let Some(balances_call) = call.is_sub_type() {
-            match balances_call {
-                BalancesCall::transfer_allow_death { .. }
-                | BalancesCall::transfer_keep_alive { .. }
-                | BalancesCall::transfer_all { .. } => {
-                    if Pallet::<T>::coldkey_in_arbitration(who) {
-                        return Err(TransactionValidityError::Invalid(InvalidTransaction::Call));
-                    }
+        match call.is_sub_type() {
+            Some(BalancesCall::transfer_allow_death { .. })
+            | Some(BalancesCall::transfer_keep_alive { .. })
+            | Some(BalancesCall::transfer_all { .. }) => {
+                if Pallet::<T>::coldkey_in_arbitration(who) {
+                    return Err(TransactionValidityError::Invalid(InvalidTransaction::Call));
                 }
-                _ => {} // Other Balances calls are allowed
             }
+            _ => {} // Other Balances calls are allowed
         }
+
         match call.is_sub_type() {
             Some(Call::commit_weights { netuid, .. }) => {
                 if Self::check_weights_min_stake(who) {