Refactor social share buttons config

exampleSite/content/post/chapter-1.md

 featured_image: "/images/Pope-Edouard-de-Beaumont-1844.jpg"
 tags: ["scene"]
 title: "Chapter I: The Grand Hall"
-social_share:
-  display_social_share: true
-  social_items:
-    facebook: true
-    twitter: true
-    linkedin: true
 ---
 
 Three hundred and forty-eight years, six months, and nineteen days ago

exampleSite/content/post/chapter-2.md

 featured_image: ""
 tags: []
 title: "Chapter II: Pierre Gringoire"
-social_share:
-  display_social_share: true
-  social_items:
-    facebook: true
-    twitter: true
-    linkedin: true
 ---
 
 Nevertheless, as be harangued them, the satisfaction and admiration

exampleSite/content/post/chapter-3.md

 featured_image: ""
 tags: []
 title: "Chapter III: Monsieur the Cardinal"
-social_share:
-  display_social_share: true
-  social_items:
-    facebook: true
-    twitter: true
-    linkedin: true
 ---
 
 Poor Gringoire! the din of all the great double petards of the Saint-Jean,

exampleSite/content/post/chapter-4.md

 featured_image: ""
 tags: ["scene"]
 title: "Chapter IV: Master Jacques Coppenole"
-social_share:
-  display_social_share: true
-  social_items:
-    facebook: true
-    twitter: true
-    linkedin: true
 ---
 While the pensioner of Ghent and his eminence were exchanging very low
 bows and a few words in voices still lower, a man of lofty stature, with a

exampleSite/content/post/chapter-5.md

 featured_image: ""
 tags: []
 title: "Chapter V: Quasimodo"
-social_share:
-  display_social_share: true
-  social_items:
-    facebook: true
-    twitter: true
-    linkedin: true
 ---
 
 In the twinkling of an eye, all was ready to execute Coppenole’s idea. Bourgeois, scholars and law clerks all set to work. The little chapel situated opposite the marble table was selected for the scene of the grinning match. A pane broken in the pretty rose window above the door, left free a circle of stone through which it was agreed that the competitors should thrust their heads. In order to reach it, it was only necessary to mount upon a couple of hogsheads, which had been produced from I know not where, and perched one upon the other, after a fashion. It was settled that each candidate, man or woman (for it was possible to choose a female pope), should, for the sake of leaving the impression of his grimace fresh and complete, cover his face and remain concealed in the chapel until the moment of his appearance. In less than an instant, the chapel was crowded with competitors, upon whom the door was then closed.

exampleSite/content/post/chapter-6.md

 featured_image: "/images/esmeralda.jpg"
 tags: []
 title: "Chapter VI: Esmeralda"
-social_share:
-  display_social_share: true
-  social_items:
-    facebook: true
-    twitter: true
-    linkedin: true
+disable_share: false
 ---
 We are delighted to be able to inform the reader, that during the whole of
 this scene, Gringoire and his piece had stood firm. His actors, spurred on

layouts/partials/social-share.html

 {{ $body := print $title ", by " .Site.Title "\n" .Params.description "\n\n" $url "\n" }}
 {{ $icon_size := "32px" }}
 {{ $test_url := printf "%s" "https://www.google.com/" }}
-{{ if .Params.social_share.display_social_share }}
-  {{ $social := .Params.social_share.social_items }}
+
+{{ if not .Params.disable_share }}
   <div id="sharing" class="mt3">
-    {{ with $social.facebook }}
-      <a href="http://www.facebook.com/sharer.php?u={{ $url }}" class="facebook no-underline" aria-label="share on Facebook">
-        {{ partialCached "svg/facebook.svg" (dict "size" $icon_size) $icon_size }}
-      </a>
-    {{ end }}
+    <a href="http://www.facebook.com/sharer.php?u={{ $url }}" class="facebook no-underline" aria-label="share on Facebook">
+      {{ partialCached "svg/facebook.svg" (dict "size" $icon_size) $icon_size }}
+    </a>
 
-    {{ with $social.twitter }}
-      <a href="http://twitter.com/share?url={{ $url }}&text={{ $title }}&via={{with $site.Social.twitter }}{{ . }}{{ end }}" class="twitter no-underline" aria-label="share on Twitter">
-        {{ partialCached "svg/twitter.svg" (dict "size" $icon_size) $icon_size }}
-      </a>
-    {{ end }}
+    <a href="http://twitter.com/share?url={{ $url }}&text={{ $title }}&via={{with .Site.Social.twitter }}{{ . }}{{ end }}" class="twitter no-underline" aria-label="share on Twitter">
+      {{ partialCached "svg/twitter.svg" (dict "size" $icon_size) $icon_size }}
+    </a>
 
-    {{ with $social.linkedin }}
-      <a href="http://www.linkedin.com/shareArticle?mini=true&url={{ $url }}&title={{ $title }}" class="linkedin no-underline" aria-label="share on LinkedIn">
-        {{ partialCached "svg/linkedin.svg" (dict "size" $icon_size) $icon_size }}
-      </a>
-    {{ end }}
+    <a href="http://www.linkedin.com/shareArticle?mini=true&url={{ $url }}&title={{ $title }}" class="linkedin no-underline" aria-label="share on LinkedIn">
+      {{ partialCached "svg/linkedin.svg" (dict "size" $icon_size) $icon_size }}
+    </a>
   </div>
 {{ end }}