MAINTAINERS: remove section CIRRUS LOGIC EP93XX OHCI USB HOST DRIVER

Commit e55f7cd2

 ("usb: ohci: remove ep93xx bus glue platform
driver") removed the file, remove the section.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: H Hartley Sweeten <hartleys@visionengravers.com>
Cc: Lennert Buytenhek <kernel@wantstofly.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>