These two files were modified directly on the server on 21 Dec 2016,
but never committed back to Git, leading to the git clone at
`jquery-blogs:/var/www/blog.jquery.com/wp-content/themes/` being
in a dirty state.

This change effectively matches
jquery/jquery-wp-content@9b9edd507b73.

Motivated by reducing third-party, cross-domain, or sensitive-looking
code that is no longer in used.

jquery (base):

* Remove Adzerk (which for the past 7 years has contained
  just 1 "ad" in its pool, namely a jQuery Foundation donate image).
  Turn into empty broadcast area, matching the
  commits jquery/jquery-wp-content@4a777295
  and jquery/jquery-wp-content@3427d5536a.

* Remove Google API reference, matching the commit
  jquery/jquery-wp-content@575a8cf15ef1.

* Remove IE6-9 conditionals, matching the commits
  jquery/jquery-wp-content@6823f6d0dde,
  jquery/jquery-wp-content@bcf11cc555b,
  jquery/jquery-wp-content@caa8a5e7f90.

jquery.org:
* coupon
* membership
* Stripe
* flexslider

jquerymobile.com:
* builder: Fix broken image reference.

Closes jquery#6.

Closes jquery#7.

- allow scripts, styles, and images from code.jquery.com

Ref jquery/infrastructure-puppet#54
Closes jquerygh-8

Ref jquery/infrastructure-puppet#54
Closes jquerygh-9

Ref jquery/infrastructure-puppet#54
Closes jquerygh-11

Closes jquerygh-12