net: remove drivers@pensando.io from MAINTAINERS

Our corporate overlords have been changing the domains around
again and this mailing list has gone away.
Signed-off-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Martin Habets <habetsm.xilinx@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

MAINTAINERS

@@ -17532,7 +17532,6 @@ F:	include/linux/peci.h
 PENSANDO ETHERNET DRIVERS
 M:	Shannon Nelson <shannon.nelson@amd.com>
 M:	Brett Creeley <brett.creeley@amd.com>
-M:	drivers@pensando.io
 L:	netdev@vger.kernel.org
 S:	Supported
 F:	Documentation/networking/device_drivers/ethernet/pensando/ionic.rst