WifiSettings: do not set auth_alg for WPA/WPA2 networks.

Change-Id: Ib41a52d90ca8db3cb52aa1fb87e2433bb76f4de2
diff --git a/src/com/android/settings/wifi/WifiDialog.java b/src/com/android/settings/wifi/WifiDialog.java
index a4538a4..7f69967 100644
--- a/src/com/android/settings/wifi/WifiDialog.java
+++ b/src/com/android/settings/wifi/WifiDialog.java
@@ -125,7 +125,6 @@
 
             case AccessPoint.SECURITY_PSK:
                 config.allowedKeyManagement.set(KeyMgmt.WPA_PSK);
-                config.allowedAuthAlgorithms.set(AuthAlgorithm.OPEN);
                 if (mPassword.length() != 0) {
                     String password = mPassword.getText().toString();
                     if (password.matches("[0-9A-Fa-f]{64}")) {