test: remove duplicate hook-wake heartbeat empty-file case

src/infra/heartbeat-runner.returns-default-unset.test.ts

@@ -1093,73 +1093,6 @@ describe("runHeartbeatOnce", () => {
     }
   });
 
-  it("does not skip hook-triggered heartbeat when HEARTBEAT.md is effectively empty", async () => {
-    const tmpDir = await createCaseDir("openclaw-hb");
-    const storePath = path.join(tmpDir, "sessions.json");
-    const workspaceDir = path.join(tmpDir, "workspace");
-    const replySpy = vi.spyOn(replyModule, "getReplyFromConfig");
-    try {
-      await fs.mkdir(workspaceDir, { recursive: true });
-      await fs.writeFile(
-        path.join(workspaceDir, "HEARTBEAT.md"),
-        "# HEARTBEAT.md\n\n## Tasks\n\n",
-        "utf-8",
-      );
-
-      const cfg: OpenClawConfig = {
-        agents: {
-          defaults: {
-            workspace: workspaceDir,
-            heartbeat: { every: "5m", target: "whatsapp" },
-          },
-        },
-        channels: { whatsapp: { allowFrom: ["*"] } },
-        session: { store: storePath },
-      };
-      const sessionKey = resolveMainSessionKey(cfg);
-
-      await fs.writeFile(
-        storePath,
-        JSON.stringify(
-          {
-            [sessionKey]: {
-              sessionId: "sid",
-              updatedAt: Date.now(),
-              lastChannel: "whatsapp",
-              lastTo: "+1555",
-            },
-          },
-          null,
-          2,
-        ),
-      );
-
-      replySpy.mockResolvedValue({ text: "hook event processed" });
-      const sendWhatsApp = vi.fn().mockResolvedValue({
-        messageId: "m1",
-        toJid: "jid",
-      });
-
-      const res = await runHeartbeatOnce({
-        cfg,
-        reason: "hook:wake",
-        deps: {
-          sendWhatsApp,
-          getQueueSize: () => 0,
-          nowMs: () => 0,
-          webAuthExists: async () => true,
-          hasActiveWebListener: () => true,
-        },
-      });
-
-      expect(res.status).toBe("ran");
-      expect(replySpy).toHaveBeenCalled();
-      expect(sendWhatsApp).toHaveBeenCalledTimes(1);
-    } finally {
-      replySpy.mockRestore();
-    }
-  });
-
   it("runs heartbeat when HEARTBEAT.md has actionable content", async () => {
     const tmpDir = await createCaseDir("openclaw-hb");
     const storePath = path.join(tmpDir, "sessions.json");