MAINTAINERS: mmc: Remove the SDHCI-OF section

Anton told me that he isn't maintaing the SDHCI-OF parts anymore, so
let's remove him from this section to avoid confusion.

Morover, since the SDHCI-OF section overlaps with the SDHCI DRIVER
section, let's just remove it completely.

Cc: Anton Vorontsov <anton@enomsg.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

MAINTAINERS

@@ -8680,13 +8680,6 @@ F:	include/linux/seccomp.h
 K:	\bsecure_computing
 K:	\bTIF_SECCOMP\b
 
-SECURE DIGITAL HOST CONTROLLER INTERFACE, OPEN FIRMWARE BINDINGS (SDHCI-OF)
-M:	Anton Vorontsov <anton@enomsg.org>
-L:	linuxppc-dev@lists.ozlabs.org
-L:	linux-mmc@vger.kernel.org
-S:	Maintained
-F:	drivers/mmc/host/sdhci-pltfm.[ch]
-
 SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) SAMSUNG DRIVER
 M:	Ben Dooks <ben-linux@fluff.org>
 L:	linux-mmc@vger.kernel.org