Tidy the launch call and drop stray files

app.py

@@ -174,7 +174,4 @@ if __name__ == "__main__":
         )
 
 
-    demo.queue(default_concurrency_limit=1).launch(
-        share=True, show_error=True,
-        pwa=True,
-    )
+    demo.queue(default_concurrency_limit=1).launch(show_error=True, pwa=True)