Remove deprecated parameter: concurrency_count (#2315)

Author: ronensc

examples/gradio_webserver.py

@@ -47,6 +47,6 @@ def build_demo():
     args = parser.parse_args()
 
     demo = build_demo()
-    demo.queue(concurrency_count=100).launch(server_name=args.host,
-                                             server_port=args.port,
-                                             share=True)
+    demo.queue().launch(server_name=args.host,
+                        server_port=args.port,
+                        share=True)