This reverts commit f3484223.

Issue #3191422 by Martijn de Wit: Respect formnovalidate attribute on a button with an AJAX callback

- Copy the "pattern" jquery validation method into a module js file
  and define a library
- Use the library in the plugin attachment instead of additional-methods.js

Issue #3208810 by Robdowski, Luke.Leber: CvJqueryValidateOptions not set and breaks exptected formatting

Issue #3101939 by Luke.Leber: Default required validation message does not match core form validation required message

Issue #3063682 by jrockowitz, j.cowher, HeikkiY: Unable to move to previous page in a wizard form with clientside validation

Issue #3066451 by Eduardo Morales, nikunjkotecha, Luke.Leber, msuthars, JayKandari: Composer Deprecation Warning

This reverts commit 7075fb96.

This reverts commit 0088371d.

Issue #3072737 by Sergiu Stici, dlfaison:  Warning: array_diff_key(): Argument #2 is not an array in Drupal\clientside_validation\Plugin\CvValidator\Required->getRules()  when I attempt to edit any node

Issue #2905554 by nikunjkotecha: How to enable validation on blur and also not working for file, body field

Issue #2952233 by nikunjkotecha, jrockowitz, piyuesh23, divined: Apply client side validation on forms submitted via ajax

Issue #2952233 by nikunjkotecha, jrockowitz, piyuesh23, divined: Apply client side validation on forms submitted via ajax