Cleaned up videoCard labs flag

refs https://github.com/TryGhost/Team/issues/1258

- removed labs flag and conditionals

ghost/admin/app/services/feature.js

@@ -58,7 +58,6 @@ export default Service.extend({
     accordionCard: feature('accordionCard'),
     fileCard: feature('fileCard'),
     audioCard: feature('audioCard'),
-    videoCard: feature('videoCard'),
     productCard: feature('productCard'),
     beforeAfterCard: feature('beforeAfterCard'),
     richTwitterNewsletters: feature('richTwitterNewsletters'),

ghost/admin/app/templates/settings/labs.hbs

@@ -352,19 +352,6 @@
                         </div>
                     </div>
                 </div>
-                <div class="gh-expandable-block">
-                    <div class="gh-expandable-header">
-                        <div>
-                            <h4 class="gh-expandable-title">Cardmageddon - Video</h4>
-                            <p class="gh-expandable-description">
-                                Add a video file
-                            </p>
-                        </div>
-                        <div class="for-switch">
-                           <GhFeatureFlag @flag="videoCard" />
-                        </div>
-                    </div>
-                </div>
                 <div class="gh-expandable-block">
                     <div class="gh-expandable-header">
                         <div>

ghost/admin/lib/koenig-editor/addon/options/cards.js

@@ -215,8 +215,7 @@ export const CARD_MENU = [
             replaceArg: 'video',
             payload: {
                 triggerBrowse: true
-            },
-            isAvailable: 'feature.videoCard'
+            }
         },
         {
             label: 'Audio',