i40e: Fix VF's link state notification

This resolves an issue where the VF link state was not being updated
when the PF is down or up, and the VF link state would always show
that it is running.

Signed-off-by: Mariusz Stachura <mariusz.stachura@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/i40e/i40e_main.c

@@ -8509,14 +8509,9 @@ static void i40e_link_event(struct i40e_pf *pf)
 	i40e_status status;
 	bool new_link, old_link;
 
-	/* save off old link status information */
-	pf->hw.phy.link_info_old = pf->hw.phy.link_info;
-
 	/* set this to force the get_link_status call to refresh state */
 	pf->hw.phy.get_link_info = true;
-
 	old_link = (pf->hw.phy.link_info_old.link_info & I40E_AQ_LINK_UP);
-
 	status = i40e_get_link_status(&pf->hw, &new_link);
 
 	/* On success, disable temp link polling */