Revert "Enforce BluetoothPrivileged Permission for ScanFilter APIs"

This reverts commit 218850da.

Reverting due to some CTS failures until the issue is resolved.

Bug: 188630254
Test: atest CtsBluetoothTestCases:android.bluetooth.cts.BluetoothLeScanTest#testBasicBleScan -- --abi arm64-v8a
Tag: #feature
Change-Id: I6cc1071b71e13fd0c819e3cc9d49e5af753d88c2