Use returned image URL

ee/app/assets/javascripts/design_management/graphql.js

@@ -15,13 +15,9 @@ const defaultClient = createDefaultClient({
         variables: { fullPath: projectPath, iid: issueIid },
       });
 
-      return {
-        ...result.project.issue.designs.designs.edges.find(
-          ({ node }) => parseInt(node.id, 10) === id,
-        ).node,
-        // TODO: Remove this once backend exposes raw images
-        image: 'http://via.placeholder.com/1000',
-      };
+      return result.project.issue.designs.designs.edges.find(
+        ({ node }) => parseInt(node.id, 10) === id,
+      ).node;
     },
   },
 });

ee/app/assets/javascripts/design_management/mixins/all_designs.js

@@ -19,12 +19,7 @@ export default {
           iid: this.issueIid,
         };
       },
-      update: data =>
-        data.project.issue.designs.designs.edges.map(({ node }) => ({
-          ...node,
-          // TODO: Remove this once backend exposes raw images
-          image: 'http://via.placeholder.com/1000',
-        })),
+      update: data => data.project.issue.designs.designs.edges.map(({ node }) => node),
       error() {
         this.error = true;
       },

ee/app/assets/javascripts/design_management/queries/designListFragment.graphql

 fragment DesignListItem on Design {
   id
+  image
   filename
 }