Use the Future's result directly rather than awaiting again

The asyncio documentation does not specify whether awaiting a Future multiple times is supported or not: https://bugs.python.org/issue41275

qwarc/__init__.py

@@ -248,9 +248,8 @@ class QWARC:
 				self._sleepTasks.remove(future)
 			elif future.taskType == 'process':
 				item = future.item
-			# TODO Replace all of this with `if future.cancelled():`
 			try:
-				await future #TODO: Is this actually necessary? asyncio.wait only returns 'done' futures...
+				future.result()
 			except concurrent.futures.CancelledError as e:
 				# Got cancelled, nothing we can do about it, but let's log a warning if it's a process task
 				if future.taskType == 'process':