Fix crash in SpiService on client disconnect
Fix crash in SpiService on client disconnect

Do not check the client id when closing the SPI device handles in the
client session closed handler.  Checking the client id in this case
was resulting in a LE_KILL_CLIENT that killed SpiService itself.

Change-Id: I0ad5e72d5d711f2ce08efd39396403fd21629fdd
Resolves: LE-7669

legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af,legatoproject/legato-af