Removed Instagram embed entry from the card menu

no issue

- Facebook are changing how Facebook/Instagram embeds work meaning that they won't work in Ghost once the deprecation lands on Oct 24th

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

@@ -128,14 +128,6 @@ export const CARD_MENU = [
             replaceArg: 'embed',
             params: ['url']
         },
-        {
-            label: 'Instagram',
-            icon: 'koenig/kg-card-type-instagram',
-            matches: ['instagram'],
-            type: 'card',
-            replaceArg: 'embed',
-            params: ['url']
-        },
         {
             label: 'Unsplash',
             icon: 'koenig/kg-card-type-unsplash',