For #18819 - Hide the Credit Card preference by default (#18820)

app/src/main/res/xml/preferences.xml

@@ -3,8 +3,7 @@
    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 
-<androidx.preference.PreferenceScreen
-    xmlns:android="http://schemas.android.com/apk/res/android"
+<androidx.preference.PreferenceScreen xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
 
     <androidx.preference.Preference
@@ -71,7 +70,8 @@
         <androidx.preference.Preference
             android:icon="@drawable/ic_formfill"
             android:key="@string/pref_key_credit_cards"
-            android:title="@string/preferences_credit_cards" />
+            android:title="@string/preferences_credit_cards"
+            app:isPreferenceVisible="false" />
 
         <androidx.preference.Preference
             android:icon="@drawable/ic_accessibility"