App ops was never meant to have been included in any android firmware for general users. Sony have probably removed any links to it by order of Google. The only way I can think to restore it is to downgrade back to 15.4.A.0.23.
Isn't there a xposed module that restores app ops?
EDIT: There is- http://xdaforums.com/xposed/modules/xposed-appopsxposed-appops-4-3-t2564865
App ops was never meant to have been included in any android firmware for general users. Sony have probably removed any links to it by order of Google. The only way I can think to restore it is to downgrade back to 15.4.A.0.23.