Remove App and iTunes Connect developer help from your account, appitunes
ITunes Connect developers help remove apps from your account
Delete an App that you do not want to continue selling or provide downloads and will not use its name again. If your App has at least one approved version and the latest version is in one of the following states, you can delete the App:
Prepare for submission
Invalid binary file
Rejected by developers
Rejected
Metadata rejected
Dismounted by developers
Dismounted
If your App status is different from the above, you can delete the App after removing the build version from the review or removing the App from the App Store.
If the App is part of the Game Center group, either in the App set, or is currently available in the App Store, it cannot be deleted. You must remove the App from the App Store or from the Group to delete the App from your account.
[Warning] If you delete an App, it cannot be restored. The SKU or App name cannot be reused in the same organization. If you have uploaded a build version, your Set ID cannot be reused.
Required functions: Legal affairs (team agency ). See functional permissions.
Official reference link: https://help.apple.com/itunes-connect/developer/#/dev28d17ed35