API Review: factoryReset->clearBluetooth

> Consider renaming the factoryReset method to “clearBluetooth”.

Bug: 222725037
Test: TH
Tag; #refactor

Change-Id: Id42a3344b6ae1a42d0128d2a055b9710f81c4b81

src/com/android/settings/ResetNetworkConfirm.java

@@ -138,7 +138,7 @@ public class ResetNetworkConfirm extends InstrumentedFragment {
             if (btManager != null) {
                 BluetoothAdapter btAdapter = btManager.getAdapter();
                 if (btAdapter != null) {
-                    btAdapter.factoryReset();
+                    btAdapter.clearBluetooth();
                 }
             }