Update registration.py
Update registration.py

Temporarily removed warp resolution parameters to see effect on registration quality
sgiavasis/C-PAC,roijo/C-PAC_complexitytools,roijo/C-PAC_complexitytools,danlurie/C-PAC,roijo/C-PAC_complexitytools,danlurie/C-PAC,roijo/C-PAC_complexitytools,sgiavasis/C-PAC,danlurie/C-PAC,sgiavasis/C-PAC,danlurie/C-PAC,sgiavasis/C-PAC