chore: remove @lastmodified tags

class/task.php

@@ -6,8 +6,6 @@
  * @package footnotes
  * @since 1.5.0
  *
- * @lastmodified  2021-02-20T0438+0100
- *
  * @since 2.0.0  Bugfix: various.
  * @since 2.0.4  Bugfix: Referrers and backlinks: remove hard links to streamline browsing history, thanks to @theroninjedi47 bug report.
  * @since 2.0.5  Bugfix: Reference container: fix relative position through priority level, thanks to @june01 @imeson @spaceling bug reports, thanks to @spaceling code contribution.

css/dev-tooltips.css

@@ -1,15 +1,8 @@
 /*<?php for docblocks
 /**
- * Created by Stefan Herndler.
- * User: Stefan
- * Created-Date: 15.05.14
- * Created-Time: 16:21
- * Since: 1.0
- * 
  * Additional stylesheet needed when tooltips (jQuery or alternative) are enabled.
  * 
  * @version 2.5.8
- * @lastmodified 2021-02-28T1302+0100
  * 
  * System of unified minified style sheets tailored to the instance.
  * @since 2.5.5

js/jquery.tools.js

@@ -25,7 +25,6 @@
  * Make sure to sync the version number in class/init.php:
  * @version 1.2.7.redacted.2
  *
- * @lastmodified 2021-02-18T2032+0100
  * @accountable @pewgeuges
  *
  * @since 2.0.0  Update: Tooltips: fix disabling bug by loading jQuery UI library, thanks to @rajinderverma @ericcorbett2 @honlapdavid @mmallett @twellve_million bug reports, thanks to @vonpiernik code contribution