move mempool tests from full_node to mempool directory (#14056)

tests/conftest.py

@@ -413,7 +413,7 @@ async def wallet_two_node_simulator():
         yield _
 
 
-@pytest_asyncio.fixture(scope="module")
+@pytest_asyncio.fixture(scope="function")
 async def wallet_nodes_mempool_perf(bt):
     key_seed = bt.farmer_master_sk_entropy
     async for _ in setup_simulators_and_wallets(2, 1, {}, key_seed=key_seed):

tests/core/full_node/test_full_node.py

@@ -49,8 +49,8 @@ from chia.wallet.transaction_record import TransactionRecord
 from tests.blockchain.blockchain_test_utils import _validate_and_add_block, _validate_and_add_block_no_error
 from tests.connection_utils import add_dummy_connection, connect_and_get_peer
 from tests.core.full_node.stores.test_coin_store import get_future_reward_coins
-from tests.core.full_node.test_mempool_performance import wallet_height_at_least
 from tests.core.make_block_generator import make_spend_bundle
+from tests.core.mempool.test_mempool_performance import wallet_height_at_least
 from tests.core.node_height import node_height_at_least
 from tests.util.wallet_is_synced import wallet_is_synced