settings: Remove @hide NFC API usage

These @hide usages in other parts of platform need to be cleaned
up to unbundle NFC mainline module.

Flag: None (The NFC flag - `enableNfcMainline` has been promoted to trunkfood. Note these APIs are available as @hide even if not available in formal SDK until V)
Bug: 307352220
Test: Compiles

Merged-In: I6f87ad7ae03c67aaa2ddb0ac2529debc53278ba8
Change-Id: I6f87ad7ae03c67aaa2ddb0ac2529debc53278ba8

Android.bp

@@ -61,7 +61,6 @@ android_library {
         "res-product",
     ],
     static_libs: [
-        "android.nfc.flags-aconfig-java",
         "androidx-constraintlayout_constraintlayout",
         "androidx.slice_slice-builders",
         "androidx.slice_slice-core",