fs: delete unused Makefile

fs/Makefile is unused. The top-level Makefile sets LIBS-y += fs/xxx and
hence causes make to directly descend two directory levels into each
individual filesystem, and it never descends into fs/ itself.

So, delete this useless file.

Signed-off-by: Stephen Warren <swarren@nvidia.com>
Reviewed-by: Benoît Thébaudeau <benoit.thebaudeau@advansee.com>
Acked-by: Simon Glass <sjg@chromium.org>

fs/Makefile

-#
-# (C) Copyright 2000-2006
-# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
-#
-# See file CREDITS for list of people who contributed to this
-# project.
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License as
-# published by the Free Software Foundation; either version 2 of
-# the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
-# MA 02111-1307 USA
-#
-#
-
-subdirs-$(CONFIG_CMD_CBFS) += cbfs
-subdirs-$(CONFIG_CMD_CRAMFS) := cramfs
-subdirs-$(CONFIG_CMD_EXT4) += ext4
-ifndef CONFIG_CMD_EXT4
-subdirs-$(CONFIG_CMD_EXT2) += ext4
-endif
-subdirs-$(CONFIG_CMD_FAT) += fat
-subdirs-$(CONFIG_CMD_FDOS) += fdos
-subdirs-$(CONFIG_CMD_JFFS2) += jffs2
-subdirs-$(CONFIG_CMD_REISER) += reiserfs
-subdirs-$(CONFIG_YAFFS2) += yaffs2
-subdirs-$(CONFIG_CMD_UBIFS) += ubifs
-subdirs-$(CONFIG_CMD_ZFS) += zfs
-
-SUBDIRS	:= $(subdirs-y)
-
-$(obj).depend all:
-	@for dir in $(SUBDIRS) ; do \
-		$(MAKE) -C $$dir $@ ; done