MAINTAINERS: iomap: Remove fs/iomap.c record

Update MAINTAINERS to reflect that fs/iomap.c file
was splitted into separate files in fs/iomap/

Cc: Darrick J. Wong <darrick.wong@oracle.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: linux-fsdevel@vger.kernel.org
Fixes: cb7181ff ("iomap: move the main iteration code into a separate file")
Signed-off-by: NDenis Efremov <efremov@linux.com>
Reviewed-by: NDarrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: NDarrick J. Wong <darrick.wong@oracle.com>

MAINTAINERS

@@ -8416,7 +8416,6 @@ L:	linux-xfs@vger.kernel.org
 L:	linux-fsdevel@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/fs/xfs/xfs-linux.git
 S:	Supported
-F:	fs/iomap.c
 F:	fs/iomap/
 F:	include/linux/iomap.h