Fix SSH zero address OTP delete (#6390)
Fix SSH zero address OTP delete (#6390)

* Fix SSH zero address OTP delete

Fixed bug where SSH OTP roles could not be deleted if a zero-address role
previously existed, and there currently exist no zero-address roles.

Fixes #6382

* Eliminate zeroAddressRoles remove function

hartsock/vault,kingland/vault,hashicorp/vault,hashicorp/vault,joelthompson/vault,rnaveiras/vault,kingland/vault,rnaveiras/vault,quixoten/vault,kingland/vault,hartsock/vault,kingland/vault,hartsock/vault,hashicorp/vault,joelthompson/vault,hartsock/vault,quixoten/vault,joelthompson/vault,rnaveiras/vault,joelthompson/vault,hartsock/vault,hashicorp/vault,rnaveiras/vault,quixoten/vault,hashicorp/vault,kingland/vault,hashicorp/vault,rnaveiras/vault,quixoten/vault