Remove the broken TiDB-Wasm demo link.
diff --git a/WebAssembly.asciidoc b/WebAssembly.asciidoc
index d6405bc..e22ec1d 100644
--- a/WebAssembly.asciidoc
+++ b/WebAssembly.asciidoc
@@ -332,7 +332,6 @@
## Database
* https://github.com/pingcap/tidb/pull/13069[TiDB-Wasm] - Running TiDB, a golang database in the browser on Wasm.
-** https://tour.tidb.io/[DEMO on running TiDB SQL statements].
## WebGL canvas (3D)
* https://bobcob7.github.io/wasm-basic-triangle/[Basic triangle] (https://github.com/bobcob7/wasm-basic-triangle[source code]) - Creates a basic triangle in WebGL
