Stop contact email addresses from automatically linking to accounts

When I create a new contact and link it to an account, the email address for the contact automatically gets related to the account also.  This causes it to show up on the account record display in a list.  If I have a lot of contacts related to the account, this list display of email addresses becomes problematic to the point that it's difficult to update the account.  Is there a way to turn off the functionality that automatically relates a contact email to the related account?   I only want the contact email to be related to the contact.

I have an onsite install of 12.0.3 ent.