Stop waiting for unchecked directory info
Once we've fixed legacy/trac#33428 (moved) (microdescs), legacy/trac#33582 (moved) (bridges), and legacy/trac#33609 (moved) (onion services), we might be able to remove WAIT_FOR_UNCHECKED_DIR_INFO in chutney's TorNet.py.
But we might still need to wait for:
- internal tor state changes, in response to downloading descriptors.
So we will need to make this change, then test it on Tor 0.3.5 and master.