If you want to ask :" I have An Ipad WIFI/LTE Icloud Locked, because I forgot to go to https://www.icloud.com/activationlock/ before I bought it, can I transform it to a Wifi only device just by removing one transistor ?" , the answer is yes.
Check this link :
Just go directly to link dedicated to your model.
Pay attention : It's ok for All Ipads until the Ipad Air. Much more complicated for Ipad Air 2 Lte and probably for Ipad Pro. For Ipad Air 2 Lte the opéartion on the motherboard is siple too, but once you have restored your device as Wifi device, you will notice that you can't have any Wifi/buethooth connectivity. To fix this issue you will have to jailbreak and then to go to Cydia to install the missing parts of your IOS that enable you to have the Wifi/Bluetooth connectivity.
But apparently you have an Ipad air so, it's Ok.