LE: Remove stored link key if encryption fails due to missing key (remote)

Remove the link key if encryption fails due to missing key or
authentication error. When a remote device loses the bond, all
HOGP services cached should be discarded and all client configuration
descriptors needs to be re-enabled. This will ensure successful
re-connection.

Bug: 15022622
Change-Id: Ie1730830c0cbbc294e2cd579d7dca69d16cf8218