Wordpress - Remove Personal Options section from Profile

This should do the trick

// removes the `profile.php` admin color scheme options
remove_action( 'admin_color_scheme_picker', 'admin_color_scheme_picker' );

if ( ! function_exists( 'cor_remove_personal_options' ) ) {
  /**
   * Removes the leftover 'Visual Editor', 'Keyboard Shortcuts' and 'Toolbar' options.
   */
  function cor_remove_personal_options( $subject ) {
    $subject = preg_replace( '#<h3>Personal Options</h3>.+?/table>#s', '', $subject, 1 );
    return $subject;
  }

  function cor_profile_subject_start() {
    ob_start( 'cor_remove_personal_options' );
  }

  function cor_profile_subject_end() {
    ob_end_flush();
  }
}
add_action( 'admin_head-profile.php', 'cor_profile_subject_start' );
add_action( 'admin_footer-profile.php', 'cor_profile_subject_end' );

Also, don't forget to mark your previous questions as solved :)

Was just trying to figure this out and came across this answer. The above code by Cor van doesn't work anymore, but with a slight change of the add_action, it can.

All you need to do is change the last two lines from:

add_action( 'admin_head-profile.php', 'cor_profile_subject_start' );
add_action( 'admin_footer-profile.php', 'cor_profile_subject_end' );

to

add_action( 'admin_head-user-edit.php', 'cor_profile_subject_start' );
add_action( 'admin_footer-user-edit.php', 'cor_profile_subject_end' );

So, the final code would look something like:

if ( ! function_exists( 'cor_remove_personal_options' ) ) {
  /**
   * Removes the leftover 'Visual Editor', 'Keyboard Shortcuts' and 'Toolbar' options.
   */
  function cor_remove_personal_options( $subject ) {
    $subject = preg_replace( '#<h3>Personal Options</h3>.+?/table>#s', '', $subject, 1 );
    return $subject;
  }

  function cor_profile_subject_start() {
    ob_start( 'cor_remove_personal_options' );
  }

  function cor_profile_subject_end() {
    ob_end_flush();
  }
}
add_action( 'admin_head-user-edit.php', 'cor_profile_subject_start' );
add_action( 'admin_footer-user-edit.php', 'cor_profile_subject_end' );

Accepted answer is not working with 4.8

Here comes an up to date and simplified code that should work with any version:

        // removes admin color scheme options

        remove_action( 'admin_color_scheme_picker', 'admin_color_scheme_picker' );

        //Removes the leftover 'Visual Editor', 'Keyboard Shortcuts' and 'Toolbar' options.

        add_action( 'admin_head', function () {

            ob_start( function( $subject ) {

                $subject = preg_replace( '#<h[0-9]>'.__("Personal Options").'</h[0-9]>.+?/table>#s', '', $subject, 1 );
                return $subject;
            });
        });

        add_action( 'admin_footer', function(){

            ob_end_flush();
        });