remove windows bio v2 feature flag (#7234)

Author: jlf0dev

src/Core/Constants.cs

@@ -194,7 +194,6 @@ public static class FeatureFlagKeys
     public const string EnrollAeadOnKeyRotation = "enroll-aead-on-key-rotation";
     public const string ForceUpdateKDFSettings = "pm-18021-force-update-kdf-settings";
     public const string UnlockWithMasterPasswordUnlockData = "pm-23246-unlock-with-master-password-unlock-data";
-    public const string WindowsBiometricsV2 = "pm-25373-windows-biometrics-v2";
     public const string LinuxBiometricsV2 = "pm-26340-linux-biometrics-v2";
     public const string NoLogoutOnKdfChange = "pm-23995-no-logout-on-kdf-change";
     public const string DisableType0Decryption = "pm-25174-disable-type-0-decryption";