Launch view account page when it's available.

- Add to launch the new Contextual Landing Page when user clicks the avatar
  icon and check the matching intent activity exist.
- Use the serialized intent and keeps in config.xml.
- Remove the getAccountSettingsDeeplinkIntent in the AccountFeatureProvider
  which never use again.

Change-Id: I50396af67eb04034572f8c885b4d9aef48a67e9d
Fixes: 122486552
Test: robotest

src/com/android/settings/accounts/AccountFeatureProvider.java

@@ -23,5 +23,4 @@ import android.content.Intent;
 public interface AccountFeatureProvider {
     String getAccountType();
     Account[] getAccounts(Context context);
-    Intent getAccountSettingsDeeplinkIntent();
 }