maint: hoist libparted/fs/*/Makefile.am into parent Makefile.am

maint: hoist libparted/fs/*/Makefile.am into parent Makefile.am

There was no need to have a separate Makefile.am for each file system
type, and a good reason *not* to do that (reduce duplication).
* configure.ac (AC_OUTPUT): Remove Makefiles.
* libparted/fs/Makefile.am (SUBDIRS): Remove.
(EXTRA_DIST): List the two non-src files: hfs/DOC hfs/HISTORY.
(libfs_la_SOURCES): Hoist file names to here from...
* libparted/fs/amiga/Makefile.am: ...here.
* libparted/fs/ext2/Makefile.am: Likewise.
* libparted/fs/fat/Makefile.am: Likewise.
* libparted/fs/hfs/Makefile.am: Likewise.
* libparted/fs/jfs/Makefile.am: Likewise.
* libparted/fs/linux_swap/Makefile.am: Likewise.
* libparted/fs/nilfs2/Makefile.am: Likewise.
* libparted/fs/ntfs/Makefile.am: Likewise.
* libparted/fs/reiserfs/Makefile.am: Likewise.
* libparted/fs/ufs/Makefile.am: Likewise.
* libparted/fs/xfs/Makefile.am: Likewise.
* libparted/fs/*/Makefile.am: Remove files.
* libparted/fs/amiga/a-interface.c: Now that the .o files are all
in the same place, rename from interface.c, to avoid collision with
name of .o file from ext2/interface.c.