Staging: vt6655: Remove BBvExitDeepSleep definition.

Remove function BBvExitDeepSleep that is never called.

Signed-off-by: Briana Oursler <briana.oursler@gmail.com>
Reviewed-by: Stefano Brivio <sbrivio@redhat.com>
Link: https://lore.kernel.org/r/027b00a27e2bef13c1daab3514dc7dc19fa1aa00.1585802818.git.briana.oursler@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>