Hide default WordPress users profile fields

functions.php

<?php

// As there seems to be no good php hook to remove default wordpress profile fields,
// I ended up hiding the fields with CSS then remove them with JS.

add_action( 'admin_head', 'remove_default_profile_fields' );

function remove_default_profile_fields() {

    global $pagenow;

    if( 'profile.php' != $pagenow) return;

    remove_action( 'admin_color_scheme_picker', 'admin_color_scheme_picker' );

    // <tr> selectors, each containing a field
    $tr = array(
        "tr.user-rich-editing-wrap",
        "tr.user-comment-shortcuts-wrap",
        "tr.user-first-name-wrap",
        "tr.user-last-name-wrap",
        "tr.user-admin-bar-front-wrap",
        "tr.user-profile-picture",
        "tr.user-user-login-wrap",
        "tr.user-display-name-wrap",
        "h2" // Personally I decided to remove all H2 tags too.
    );

    $selectors = implode(", ", $tr);

    // Hide the fields with css, so even if javascript is disabled they wont show up. 
    echo "<style>{$selectors}{display:none;}</style>"; ?>

    <script type="text/javascript">
        jQuery( document ).ready(function( $ ){
           // Remove selected <tr>'s
           $( '<?= $selectors; ?>' ).remove();
           // Remove any empty table that may have been left over
           $(".form-table:not(:has(tr))").remove();
        });
    </script>

  <?php
}