Qnx: Remove unused local variable

Change-Id: Ia1f37830566db7349f196ada4e7c73526e5d50d5
Reviewed-by: Mehdi Fekari <mfekari@blackberry.com>
Reviewed-by: David Kaspar <dkaspar@blackberry.com>
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Qnx: Remove redundant null validation

Change-Id: I6b4971cc41bbec5c2cd8e3146622d5409fe10e69
Reviewed-by: Mehdi Fekari <mfekari@blackberry.com>
Reviewed-by: David Kaspar <dkaspar@blackberry.com>
Reviewed-by: Tobias Hunger <tobias.hunger@digia.com>
Rewrite SettingsAccessor::settingsFiles()

This no longer has the default name first, but that does
not matter since we check all files anyway.

Change-Id: Ib3505d2cafa57e86290237e74dd1f89374da4509
Reviewed-by: Daniel Teske <daniel.teske@digia.com>