Removed maxvirtualmemory stuff from jobs-loop

* There is already per-process limits and this breaks HHVM.
  Since we do not have runners on apaches anymore, this makes
  less sense now as well and just adds complexity.

Change-Id: I4cb1769d25cbaad9e41dff4a4f9a41d11200968d
Merge "Removed maxvirtualmemory stuff from jobs-loop" into production