[test] Don't set bypass_limits to true in txvalidation_tests.cpp

AcceptToMemoryPool() is called for an invalid coinbase transaction, so
setting bypass_limits to true or false has no impact on the test.

The only way that changing bypass_limits from true to false could change
the result would be to change the outcome to INVALID(TX_MEMPOOL_POLICY).
Since the ATMP call in this test results in INVALID(TX_CONSENSUS) both
before and after this change, there is no change in behavior.

Author: jnewbery

src/test/txvalidation_tests.cpp

@@ -38,7 +38,7 @@ BOOST_FIXTURE_TEST_CASE(tx_mempool_reject_coinbase, TestChain100Setup)
 
     unsigned int initialPoolSize = m_node.mempool->size();
     const MempoolAcceptResult result = AcceptToMemoryPool(m_node.chainman->ActiveChainstate(), *m_node.mempool, MakeTransactionRef(coinbaseTx),
-                true /* bypass_limits */);
+                false /* bypass_limits */);
 
     BOOST_CHECK(result.m_result_type == MempoolAcceptResult::ResultType::INVALID);