HPCC-12311 Remove extra calls to Dali for JobQueues

The existing WsSMC.Activity code retrieves JobQueue info
for each job queue using one or two functions inside wujobq
and dfuwu. Each of those functions creates a connection to
Dali without using a time out value. In this fix, only one
connection to Dali is used to get the JobQueues tree and
the tree is used to read the queue status and WUs for every
job queue.

Signed-off-by: wangkx <kevin.wang@lexisnexis.com>