[PATCH] secur32: Use default recv timeout function

[Hans Leidekker]

On Thu, 2021-07-15 at 07:45 +1000, Alistair Leslie-Hughes wrote:
> The poll function currently always returns 0 which signals to gnutls that
> no data is available.  However this might not be the case. Using the
> default gnutls_system_recv_timeout function returns the expect value when
> data is available.

gnutls_system_recv_timeout expects a file descriptor it can call
select() on, typically a socket. Our transport is not a file
descriptor.