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Hide SFDC classic logo

It hides the SF logo from Classic - it works with custom logos too

// ==UserScript==
// @name         Hide SFDC classic logo
// @namespace    window
// @version      0.1
// @description  It hides the SF logo from Classic - it works with custom logos too
// @author       You
// @match        https://*.salesforce.com/**
// @grant        none
// ==/UserScript==

(function() {
    'use strict';

    document.getElementById("phHeaderLogoImage").style.display = "none";
    
})();