Clean up restricted handles on disconnection

Restricted handles were not cleaned up so
that it could raise exception when a BT device
is connected after a HID device is disconnected.

Bug: 322580271
Bug: 322509603
Test: atest GattServiceTest w/ and w/o the flag

Change-Id: I24edf15eab9dd5bb53a43d0ceeb6a39316488d4e