Removed HID Disconnecting state verification when transport switch

handleMessageSetPreferredTransport() is modified to update
the connection state to disconnected immediately

Bug: 399286751
Bug: 374641230
Test: atest -v HidHeadTrackerTest
Test: atest -v HidHostDualModeTest
Flag: com.android.bluetooth.flags.ignore_unselected_hid_transport_states
Change-Id: Icc6d7cd3e436cfc2ccbdcfd15e8f151f19b13725