luci-mod-network: wireless.js: remove form reset button

The form reset button on the wireless page has no function as no input
field is present outside of modal configuration views, so drop it to
avoid confusion.

Ref: #6514
Signed-off-by: Jo-Philipp Wich <jo@mein.io>

modules/luci-mod-network/htdocs/luci-static/resources/view/network/wireless.js

@@ -2265,5 +2265,7 @@ return view.extend({
 
 			return E([ nodes, E('h3', _('Associated Stations')), table ]);
 		}, this, m));
-	}
+	},
+
+	handleReset: null
 });