Move MakeNoLogFileContext to common libtest_util, and use it in bench

Can be reviewed with --color-moved=dimmed-zebra

src/bench/mempool_eviction.cpp

@@ -25,13 +25,7 @@ static void AddTx(const CTransactionRef& tx, const CAmount& nFee, CTxMemPool& po
 // unique transactions for a more meaningful performance measurement.
 static void MempoolEviction(benchmark::Bench& bench)
 {
-    TestingSetup test_setup{
-        CBaseChainParams::REGTEST,
-        /* extra_args */ {
-            "-nodebuglogfile",
-            "-nodebug",
-        },
-    };
+    const auto testing_setup = MakeNoLogFileContext<const TestingSetup>();
 
     CMutableTransaction tx1 = CMutableTransaction();
     tx1.vin.resize(1);