message: [tests] Only acquire lock once in p2p_compactblocks.py
diff: @@ -310,7 +310,6 @@ class CompactBlocksTest(BitcoinTestFramework):
  self.check_compactblock_construction_from_block(version, header_and_shortids, block_hash, block)
  # Now fetch the compact block using a normal non-announce getdata
  - with mininode_lock:
  test_node.clear_block_announcement()
  inv = CInv(MSG_CMPCT_BLOCK, block_hash)
  test_node.send_message(msg_getdata([inv]))
  