Remove unused factory.

src/accounts/accountBalances.factory.ts

@@ -1,8 +0,0 @@
-// vim: set tw=80 ts=2 sw=2 sts=2 :
-export function AccountBalancesFactory($resource) {
-  return $resource(
-    '/api/account/:id/balances', {
-      id: '@id'
-    }
-  );
-};