Revert "kolla: Increase resources for nordix-vpod"

This reverts commit df889f9266269b24f15e53bc79325a78e16d6550.

Reason for revert: engine-vpod jenkins slaves have only 16GB RAM as of today, this change hits the memory limit. Reverting this until we can have more memory on the jenkins slaves. 

Change-Id: I2aebf5533da72cb993528902f54c8971775d43eb
1 file changed