test(defaults): drop stale longPresses re-export assertion

longPresses is opt-in vocabulary, no longer re-exported from
defaults/actions.ts since e0d3b20; its builtin resolution is already
covered by api.test.ts. Trim the defaults test to scrolls, which is an
actual default export.

pkg/spec/test/defaults.test.ts

@@ -59,10 +59,10 @@ test("typing resolves as a builtin node", async () => {
   assert.equal((typing as { verb: string }).verb, "typing");
 });
 
-test("longPresses and scrolls resolve as builtin nodes", async () => {
+test("scrolls resolves as a builtin node", async () => {
   installRuntime(emptyState);
-  const { longPresses, scrolls } = await import("../src/defaults/actions.ts");
-  assert.equal((longPresses as { verb: string }).verb, "longPresses");
+  const { scrolls } = await import("../src/defaults/actions.ts");
+  assert.equal(scrolls.kind, "builtin");
   assert.equal((scrolls as { verb: string }).verb, "scrolls");
 });