core_tests: remove hardcoded hf version

tests/core_tests/bulletproofs.cpp

@@ -174,7 +174,7 @@ bool gen_bp_tx_validation_base::generate_with(std::vector<test_event_entry>& eve
   CHECK_AND_ASSERT_MES(generator.construct_block_manually(blk_txes, blk_last, miner_account,
       test_generator::bf_major_ver | test_generator::bf_minor_ver | test_generator::bf_timestamp | test_generator::bf_tx_hashes | test_generator::bf_hf_version | test_generator::bf_max_outs,
       hf_version, hf_version, blk_last.timestamp + DIFFICULTY_BLOCKS_ESTIMATE_TIMESPAN * 2, // v2 has blocks twice as long
-      crypto::hash(), 0, transaction(), starting_rct_tx_hashes, 0, 6, 10),
+      crypto::hash(), 0, transaction(), starting_rct_tx_hashes, 0, 6, hf_version),
       false, "Failed to generate block");
   if (!valid)
     DO_CALLBACK(events, "mark_invalid_block");