Make functions in cli-dump.c static and remove cli-dump.h.

Make functions in cli-dump.c static and remove cli-dump.h.

I noticed the functions declared in cli-dump.h aren't used anywhere
outside cli-dump.c.

The original patch that introduced cli-dump.c didn't include this header:

 http://sourceware.org/ml/gdb-patches/2002-03/msg00518.html

But for some reason that I couldn't find from reading the archives around
that patch's discussion, cli-dump.h was introduced in the final checkin,
at:

 http://sourceware.org/ml/gdb-patches/2002-03/msg00596.html

There seems to be no point in keeping this around nowadays.

gdb/
2013-08-09  Pedro Alves  <palves@redhat.com>

	* cli/cli-dump.c: Don't include cli/cli-dump.h.
	(scan_expression_with_cleanup, scan_filename_with_cleanup)
	(fopen_with_cleanup, add_dump_command): Make static.
	* cli/cli-dump.h: Delete file.
	* Makefile.in (HFILES_NO_SRCDIR): Remove reference to
	cli/cli-dump.h.