How to remove this

[UNKNOWN PH]

How to remove |Xenforo Theme © by ©XenTr

anyone help me how to remove this
Theme/Style - Elegant Dark
My Xenforo Version v2.1.1

Demo https://demo.xentr.net/themes.php?theme=Elegant-Dark

Help me Please

 

[kyriazhs1975]

.p-footer-copyright {
    display: none;
    padding: 6px;
    margin-top: 0;
    text-align: right;
}

put this an done