jQuery is my crutch. How do I html without it?

EtiennePls.js

// ==UserScript==
// @version        0.1
// @name           EttiennePls
// @description    Lagg wanted this, so I made it.
// @homepage       http://rjackson.me
// @match          http://perot.me/*
// @match          https://perot.me/*
// ==/UserScript==

// a function that loads jQuery and calls a callback function when jQuery has finished loading
function addJQuery(callback) {
  var script = document.createElement("script");
  script.setAttribute("src", "//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js");
  script.addEventListener('load', function() {
    var script = document.createElement("script");
    script.textContent = "window.jQ=jQuery.noConflict(true);(" + callback.toString() + ")();";
    document.body.appendChild(script);
  }, false);
  document.body.appendChild(script);
}

// the guts of this userscript
function main() {
    jQ("a[href='https://www.linkedin.com/in/etienneperot']").remove()
}

// load jQuery and execute the main function
addJQuery(main);