Selling clash of clans account but cannot remove it from my google plus

[Wounded]

I've given my clash of clans information to the buyer so he has the IOS gamecenter information in order to log in but is there any way i can disconnect myself from the google plus way of logging in to the same account on clash so that he knows its 100% his for sure?

 

[Sakura]

Might be better asked on google or something. I, for one, know nothing about clash of clans.

 

[Wounded]

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Might be better asked on google or something. I, for one, know nothing about clash of clans.

Ight will do, thank you very much.

 

[EpicNPC]

These are the instructions to transfer a COC account.

Iphone/Ipad
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1) Link CoC account to GameCenter (seller)
2) Create a new GameCenter account (buyer)
-- When creating the GC account the seller provides the buyer with their AppleID.
-- Once GC is setup it will it asks the buyer to link to the CoC account

Android
---------------
1) Link CoC to Google+ account
2) Log into the same Google+ account on your device and restore CoC