Remove reflection usage for disableBLE.

Test: unit test, which is still to be added due to missing test framework.
Bug: 202549655
Change-Id: Ib0c1286c1899e59475af94e8147a856ad1a4e530
diff --git a/nearby/service/java/com/android/server/nearby/common/bluetooth/fastpair/FastPairDualConnection.java b/nearby/service/java/com/android/server/nearby/common/bluetooth/fastpair/FastPairDualConnection.java
index 2658bec..b57e6ad 100644
--- a/nearby/service/java/com/android/server/nearby/common/bluetooth/fastpair/FastPairDualConnection.java
+++ b/nearby/service/java/com/android/server/nearby/common/bluetooth/fastpair/FastPairDualConnection.java
@@ -2096,11 +2096,7 @@
     }
 
     private static void disableBle(android.bluetooth.BluetoothAdapter adapter) {
-        try {
-            Reflect.on(adapter).withMethod("disableBLE").invoke();
-        } catch (ReflectionException e) {
-            Log.i(TAG, "Can't call disableBLE", e);
-        }
+        adapter.disableBLE();
     }
 
     /**