fuzz: Avoid utxo_total_supply timeout (take 2) #28789

Looks like this still may take a long time to run large fuzz inputs. Thus, reduce it further, but still allow it to catch the regression, if re-introduced:

diff --git a/src/consensus/tx_check.cpp b/src/consensus/tx_check.cpp
index f949655909..4bdd15c5ee 100644
--- a/src/consensus/tx_check.cpp
+++ b/src/consensus/tx_check.cpp
@@ -40,7 +40,7 @@ bool CheckTransaction(const CTransaction& tx, TxValidationState& state)
     std::set<COutPoint> vInOutPoints;
     for (const auto& txin : tx.vin) {
         if (!vInOutPoints.insert(txin.prevout).second)
-            return state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-txns-inputs-duplicate");
+            {}//return state.Invalid(TxValidationResult::TX_CONSENSUS, "bad-txns-inputs-duplicate");
     }
 
     if (tx.IsCoinBase())

This is the second take, see #27780. If in the future it still times out, I think the fuzz test can just be removed.

Example input:

JREROy5pcnAgQyw7IC4ODg4ODg4ODg4O0dEODg4ODg4ZDg4ODg4ODg4ODg7RDg4ODg4ODg4O0dEODg4ODg4ODg4ODg7R0Q4ODg4ODg4ODtHRDg4ODtHR0dEODg4O0dEODg7R0Q4ODg4ODg4ODtHRDg4ODg4ODg4ODg4O0dEODg4ODg4ODg7R0Q4ODg7R0Q4O0dEODg4ODg4ODg4ODg7R0Q4ODg4ODtHRDg4ODtHR

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