Revert "device/fido/mac: add more specific check for TouchID availability"

This reverts commit 457ff0687c.

The change in Chromium that required this removal was itself reverted.

Refs: 1504308

atom/browser/mac/atom_application.h

@@ -17,6 +17,22 @@
 - (void)setAppearance:(NSAppearance*)appearance API_AVAILABLE(macosx(10.14));
 @end
 
+#if !defined(MAC_OS_X_VERSION_10_13_2)
+
+// forward declare Touch ID APIs
+typedef NS_ENUM(NSInteger, LABiometryType) {
+  LABiometryTypeNone = 0,
+  LABiometryTypeFaceID = 1,
+  LABiometryTypeTouchID = 2,
+} API_AVAILABLE(macosx(10.13.2));
+
+@interface LAContext (HighSierraPointTwoSDK)
+@property(nonatomic, readonly)
+    LABiometryType biometryType API_AVAILABLE(macosx(10.13.2));
+@end
+
+#endif
+
 // forward declare Access APIs
 typedef NSString* AVMediaType NS_EXTENSIBLE_STRING_ENUM;