I can't delete the asset and the linked depreciation journal entries

I created an asset and I ran a depreciation schedule for that,journal entrues were created as a result. Now I want to delete the journal entries and the asset, I have cancelled journal entries and Asset now when I click on the delete asset " can’t delete asset because it is linked with GL" when I click on the GL link and want to cancel and then delete it but there at the GL level there is no option of cancellation and deletion , what should I do now ?
Note: I have marked the setting from : Account setting" and I am using Admin account for login.