Remove unnecessary runner.status call in launcher

[hemildesai]

Thanks to @titu1994 for the finding. Feel free to comment your analysis here.

[titu1994]

Can confirm, job submission on my machine with this patch is now roughly 7x faster.
For 40 independent jobs x 7 dependent runs = 280 total jobs
Before - 28 minutes
After - 4 min 15 sec

There is a somewhat fixed one time cost of 35 sec overhead for the exp.add(), but after that exp.run() takes roughly < 0.5 sec per job, far faster than the earlier variable 6-7 seconds per job

[titu1994]

Thanks !