Fix deleteMany() in dataProvider (#6)

Change-Id: I6ef3abbf3ed7a1860b7c395d91fda8b7e44f4d95

src/synapse/dataProvider.js

@@ -204,13 +204,15 @@ const dataProvider = {
     const res = resourceMap[resource];
     const homeserver_url = "https://" + homeserver + res.path;
     return Promise.all(
-      params.ids.map(id => jsonClient(`${homeserver_url}/${id}`), {
+      params.ids.map(id =>
+        jsonClient(`${homeserver_url}/${id}`, {
           method: "DELETE",
           body: JSON.stringify(params.data, filterNullValues),
-      })
+        }).then(responses => ({
-    ).then(responses => ({
           data: responses.map(({ json }) => json),
-    }));
+        }))
+      )
+    );
   },
 };