Removed camera error code

Removed mapping of one camera error code to a string, because the
code is not available yet in the BlackBerry NDK version 10.2.

Change-Id: I91a8adc8d915e065daccb665ce7a57236b9d1545
Reviewed-by: Wolfgang Bremer <wbremer@blackberry.com>
Reviewed-by: Rafael Roquetto <rafael.roquetto@kdab.com>
Reviewed-by: Thomas McGuire <thomas.mcguire@kdab.com>