code: def delete(self, key_id=None):
          
          url = self.bitbucket.url('DELETE_SSH_KEY', key_id=key_id)
          return self.bitbucket.dispatch('DELETE', url, auth=self.bitbucket.auth)
docs: Delete one of the ssh keys associated with your account.
              Please use with caution as there is NO confimation and NO undo.