MAINTAINERS: vfio-ccw: Remove myself as the maintainer

I will not be able to continue with my maintainership responsibilities
going forward, so remove myself as the maintainer.
Signed-off-by: NFarhan Ali <alifm@linux.ibm.com>
Acked-by: NCornelia Huck <cohuck@redhat.com>
Signed-off-by: NChristian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: NHeiko Carstens <heiko.carstens@de.ibm.com>

MAINTAINERS

@@ -13947,7 +13947,6 @@ F:	drivers/pci/hotplug/s390_pci_hpc.c
 
 S390 VFIO-CCW DRIVER
 M:	Cornelia Huck <cohuck@redhat.com>
-M:	Farhan Ali <alifm@linux.ibm.com>
 M:	Eric Farman <farman@linux.ibm.com>
 R:	Halil Pasic <pasic@linux.ibm.com>
 L:	linux-s390@vger.kernel.org