You must re upload your original App .zip file as the update, search your trash folder for it. Use the Application launcher and simply re submit the same original zip. When it gets re approved with same original content, only then delete this from Itunes Connect.
Tips:
You cannot delete an app that is Ready For Sale.
You would need to remove your own app from sale before
you can click the Delete button. Find Rights and Pricing button.
You are able to delete your app when it is in one of the following states:
Prepare for Upload
Waiting for Upload
Invalid Binary
Developer Rejected
Rejected
Developer Removed from Sale
Removed from Sale
I hope this helps.