r8169: remove rtl_ocpdr_cond.

It is not needed for mac_ocp_{write / read}. Actually bit 31 of OCPDR
does not change and r8168_mac_ocp_read always returns ~0.

Signed-off-by: Hayes Wang <hayeswang@realtek.com>
Tested-by: Francois Romieu <romieu@fr.zoreil.com>
1 file changed