Default Deodexing 4.4+ apks

OK so I've could a lot of speratic conversation about this but nothing conclusive. I just did the 4.4 update on my Droid Maxx, and like the 4.4 apks I've played with before all the system apps have a classes.dex already in the apk but also have an .odex, can I just delete the .odex or is there something special needs to be done to properly deodex?