fix: remove stale append_schema_hint_if_permissive call after rebase

Staging moved schema hint logic to display-time in schema() method,
so the construction-time call from PTC is no longer needed.

Co-Authored-By: Claude Opus 4.6 <[email protected]>

src/tools/wasm/wrapper.rs

@@ -625,9 +625,7 @@ impl WasmToolWrapper {
             oauth_refresh: None,
             tool_executor: None,
             tool_executor_slot: None,
-        };
-        wrapper.append_schema_hint_if_permissive();
-        wrapper
+        }
     }
 
     /// Override the tool description.