connector: remove duplicated code in cn_call_callback()
connector: remove duplicated code in cn_call_callback()

There were a couple of patches fixing the same bug that
results in duplicated err = 0; assignment.
The patch removes one of them.

Signed-off-by: Alexey Khoroshilov <a9985f635ca4eb5d7c64df6d16c76aa9811509c5@ispras.ru>
Signed-off-by: David S. Miller <fe08d3c717adf2ae63592e4c9aec6e3e404d8e3e@davemloft.net>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs