Remove legacy flag from framework

Flag: EXEMPT Remove legacy code, it's not a feature
Bug: 351977012
Test: Build pass
Change-Id: I8595bce07d9cc7b34ef5d247d7992fe66f694811
diff --git a/core/java/android/util/FeatureFlagUtils.java b/core/java/android/util/FeatureFlagUtils.java
index 0714285..d8a88b8 100644
--- a/core/java/android/util/FeatureFlagUtils.java
+++ b/core/java/android/util/FeatureFlagUtils.java
@@ -138,12 +138,6 @@
             "settings_show_stylus_preferences";
 
     /**
-     * Flag to enable/disable biometrics enrollment v2
-     * @hide
-     */
-    public static final String SETTINGS_BIOMETRICS2_ENROLLMENT = "settings_biometrics2_enrollment";
-
-    /**
      * Flag to enable/disable FingerprintSettings v2
      * @hide
      */
@@ -223,7 +217,6 @@
         DEFAULT_FLAGS.put(SETTINGS_ENABLE_SPA_METRICS, "true");
         DEFAULT_FLAGS.put(SETTINGS_ADB_METRICS_WRITER, "false");
         DEFAULT_FLAGS.put(SETTINGS_SHOW_STYLUS_PREFERENCES, "true");
-        DEFAULT_FLAGS.put(SETTINGS_BIOMETRICS2_ENROLLMENT, "false");
         DEFAULT_FLAGS.put(SETTINGS_PREFER_ACCESSIBILITY_MENU_IN_SYSTEM, "false");
         DEFAULT_FLAGS.put(SETTINGS_AUDIO_ROUTING, "false");
         DEFAULT_FLAGS.put(SETTINGS_FLASH_NOTIFICATIONS, "true");