fix(demo): remove chat pages (#3925)

Author: anlyyao

packages/tdesign-miniprogram/example/app.json

@@ -92,16 +92,7 @@
     "pages/color-picker/color-picker",
     "pages/form/form",
     "pages/guide/guide",
-    "pages/watermark/watermark",
-    "pages/chat/chat",
-    "pages/chat-message/chat-message",
-    "pages/chat-content/chat-content",
-    "pages/chat-actionbar/chat-actionbar",
-    "pages/chat-loading/chat-loading",
-    "pages/chat-thinking/chat-thinking",
-    "pages/chat-attachments/chat-attachments",
-    "pages/chat-markdown/chat-markdown",
-    "pages/chat-sender/chat-sender"
+    "pages/watermark/watermark"
   ],
   "subpackages": [
     {