Use jquery.js from sphinx

Sphinx uses libjs-jquery >= 1.11.1 which is newer than jquery-1.9.1.js
shipped by salt. Therefore jquery.js from sphinx can be used again.

Forwarded: no
Last-Updated: 2021-10-12
Signed-off-by: Benjamin Drung <benjamin.drung@ionos.com>

doc/_themes/saltstack/layout.html

@@ -19,15 +19,12 @@
     {%- set titlesuffix = "" %}
 {%- endif %}
 
-{# Remove old version of jQuery #}
 {% set js_blacklist = [
     '_static/documentation_options.js',
-    '_static/jquery.js',
 ] %}
 
 {# Add to top of the list #}
 {% set script_files = [
-    '_static/js/vendor/jquery-1.9.1.js',
     '_static/js/vendor/bootstrap.min.js',
 ] + script_files %}