e1000e: cleanup: remove unnecessary test and return

Fall-through to a return statement that effectively does the same.
Signed-off-by: NBruce Allan <bruce.w.allan@intel.com>
Tested-by: NAaron Brown <aaron.f.brown@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/e1000e/phy.c

@@ -1264,8 +1264,6 @@ s32 e1000e_phy_force_speed_duplex_igp(struct e1000_hw *hw)
 						     PHY_FORCE_LIMIT,
 						     100000,
 						     &link);
-		if (ret_val)
-			return ret_val;
 	}
 
 	return ret_val;