zipped app used for put freeze an unused app which is fetch unnecessary memory .it is a inbuilt app that's why you're not able to uninstall it. it helps your device to better ram management.
if that's your solution then click on comment 3 dot and accept solution to help others.
why you want to delete,it's very useful application where you can zip rarely used application .This can minimize the load on RAM,wh enever you want to utilize Ziped apps just unzip and use it.As per my point of view it's useful application.