Currently MIPS64/n64 does not implies wordsize-64 which means we have
to copy and paste some code from wordsize-64.
This patch changes MIPS64/n64 to imply wordsize-64 so we can remove
the duplicated code from the mips port.

OK?  Note I don't have write access yet.

Thanks,
Andrew Pinski

2012-04-13  Andrew Pinski  <apinski@cavium.com>

	* sysdeps/unix/sysv/linux/mips/mips64/n64/fallocate.c: Delete.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/fallocate64.c: Delete.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/fstatfs64.c: Delete.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/glob64.c: Delete.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise.c: Delete.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fadvise64.c: Delete.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fallocate.c: Delete.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/posix_fallocate64.c: Delete.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/preadv64.c: Delete.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/pwritev64.c: Delete.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/statfs64.c: Delete.
	* sysdeps/unix/sysv/linux/mips/mips64/n64/Implies: New file.
        * sysdeps/unix/sysv/linux/mips/mips64/n64/sysdep.h: Add a kludge just
        like x86_64 and alpha targets to have __NR_pread and
__NR_pwrite defined.
        * sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list: Remove all
        syscalls except for statfs.