Revert "Increase the maximum wait time for async resource creation. (#313)" (#321)

Some RESTler jobs are now taking much longer.  Reverting the update while
we investigate further.

This reverts commit 2cc6793e34.

restler/engine/core/async_request_utilities.py

@@ -165,7 +165,7 @@ def try_async_poll(request_data, response, max_async_wait_time):
             async_waited = True
             poll_wait_seconds = 1
             start_time = time.time()
-            RAW_LOGGING(f"Waiting for resource to be available...max wait time: {max_async_wait_time}")
+            RAW_LOGGING("Waiting for resource to be available...")
             while (time.time() - start_time) < max_async_wait_time:
                 try:
                     # Send the polling request

restler/restler_settings.py

@@ -296,7 +296,7 @@ MAX_REQUEST_EXECUTION_TIME_DEFAULT = 120
 # This time is used as a max timeout when waiting for resources to be created.
 # If the timeout is reached we will stop polling the status, but then immediately
 # send the GET request for the endpoint just in case it is now ready.
-MAX_ASYNC_RESOURCE_CREATION_TIME_DEFAULT = 240
+MAX_ASYNC_RESOURCE_CREATION_TIME_DEFAULT = 20
 # This small default for the maximum parameter combinations is intended for
 # first-time use, such as in Test mode.  Users are expected to increase this value
 # as needed for more extensive fuzzing.