Let the framework handle long clicks

If we manually propagate long click events, the framework can't include
coordinate information and we'll only be able to show a modal dialog.
Since the default long-click behavior is to show the context menu, just
let the framework handle it.

Bug: 25214386
Change-Id: I32e14b326ac91cc5a9c2bf7581325daaba34298e

src/com/android/settings/wifi/AccessPointPreference.java

@@ -101,13 +101,7 @@ public class AccessPointPreference extends Preference {
         if (mFragment != null) {
             view.itemView.setOnCreateContextMenuListener(mFragment);
             view.itemView.setTag(this);
-            view.itemView.setOnLongClickListener(new View.OnLongClickListener() {
-                @Override
-                public boolean onLongClick(View v) {
-                    view.itemView.showContextMenu();
-                    return true;
-                }
-            });
+            view.itemView.setLongClickable(true);
         }
         if (mAccessPoint == null) {
             // Used for dummy pref.