test: Remove redundant repeated test

We do not need to repeat the same test multiple times because BnB is
deterministic and will therefore always have the same outcome.
Additionally, this test was redundant because it repeats the "Smallest
combination too big" test.

Author: murchandamus

src/wallet/test/coinselector_tests.cpp

@@ -209,15 +209,6 @@ BOOST_AUTO_TEST_CASE(bnb_search_test)
     ////////////////////
     // Behavior tests //
     ////////////////////
-    // Select 1 Cent with pool of only greater than 5 Cent
-    utxo_pool.clear();
-    for (int i = 5; i <= 20; ++i) {
-        add_coin(i * CENT, i, utxo_pool);
-    }
-    // Run 100 times, to make sure it is never finding a solution
-    for (int i = 0; i < 100; ++i) {
-        BOOST_CHECK(!SelectCoinsBnB(GroupCoins(utxo_pool), 1 * CENT, 2 * CENT));
-    }
 
     // Make sure that effective value is working in AttemptSelection when BnB is used
     CoinSelectionParams coin_selection_params_bnb{