mdn: remove obsolete options[:mdn_tag]

lib/docs/scrapers/http.rb

@@ -7,8 +7,6 @@ module Docs
 
     html_filters.push 'http/clean_html', 'http/entries', 'title'
 
-    options[:mdn_tag] = 'HTTP'
-
     options[:root_title] = 'HTTP'
     options[:title] = ->(filter) { filter.current_url.host == 'tools.ietf.org' ? false : filter.default_title }
     options[:container] = ->(filter) { filter.current_url.host == 'tools.ietf.org' ? '.content' : nil }

lib/docs/scrapers/mdn/css.rb

@@ -6,8 +6,6 @@ module Docs
 
     html_filters.push 'css/clean_html', 'css/entries', 'title'
 
-    options[:mdn_tag] = 'CSS'
-
     options[:root_title] = 'CSS'
 
     options[:skip] = %w(/CSS3 /Media/Visual /paged_media /Media/TV /Media/Tactile)

lib/docs/scrapers/mdn/dom.rb

@@ -8,8 +8,6 @@ module Docs
 
     html_filters.push 'dom/clean_html', 'dom/entries', 'title'
 
-    options[:mdn_tag] = 'XSLT_Reference'
-
     options[:root_title] = 'DOM'
 
     options[:skip] = %w(

lib/docs/scrapers/mdn/dom_events.rb

@@ -9,8 +9,6 @@ module Docs
     html_filters.insert_after 'clean_html', 'dom_events/clean_html'
     html_filters.push 'dom_events/entries', 'title'
 
-    options[:mdn_tag] = 'events'
-
     options[:root_title] = 'DOM Events'
 
     options[:skip] = %w(/MozOrientation)

lib/docs/scrapers/mdn/html.rb

@@ -7,8 +7,6 @@ module Docs
 
     html_filters.push 'html/clean_html', 'html/entries', 'title'
 
-    options[:mdn_tag] = 'HTML'
-
     options[:root_title] = 'HTML'
 
     options[:title] = ->(filter) do

lib/docs/scrapers/mdn/javascript.rb

@@ -8,8 +8,6 @@ module Docs
 
     html_filters.push 'javascript/clean_html', 'javascript/entries', 'title'
 
-    options[:mdn_tag] = 'JavaScript'
-
     options[:root_title] = 'JavaScript'
 
     # Don't want

lib/docs/scrapers/mdn/svg.rb

@@ -8,8 +8,6 @@ module Docs
 
     html_filters.push 'svg/clean_html', 'svg/entries', 'title'
 
-    options[:mdn_tag] = 'XSLT_Reference'
-
     options[:root_title] = 'SVG'
 
     options[:title] = ->(filter) do

lib/docs/scrapers/mdn/xslt_xpath.rb

@@ -8,8 +8,6 @@ module Docs
 
     html_filters.push 'xslt_xpath/clean_html', 'xslt_xpath/entries', 'title'
 
-    options[:mdn_tag] = 'XSLT_Reference'
-
     options[:root_title] = 'XSLT'
 
     options[:only_patterns] = [/\A\/XSLT/, /\A\/XPath/]