Fix set auto-load safe-path false warning regression (PR 16216)

gdb/
2014-01-07  Jan Kratochvil  <jan.kratochvil@redhat.com>

	PR threads/16216
	* linux-thread-db.c (try_thread_db_load): Add parameter
	check_auto_load_safe.  Move here the file_is_auto_load_safe call.
	(try_thread_db_load_from_pdir_1): Move it there from here.
	(try_thread_db_load_from_sdir): Update caller.
	(try_thread_db_load_from_dir): Move it there from here.
remove unused deprecated_flush_hook declaration

deprecated_flush_hook is declared in defs.h but never defined.
This patch removes the stale declaration.

2014-01-13  Tom Tromey  <tromey@redhat.com>

	* defs.h (deprecated_flush_hook): Remove.
remove use_windows

Nothing actually uses use_windows, not even Insight.  So, this patch
removes it.

2014-01-13  Tom Tromey  <tromey@redhat.com>

	* defs.h (use_windows): Remove.
	* gdb.c (main): Update.
	* main.c (captured_main, gdb_main): Update.
	* main.h (struct captured_main_args) <use_windows>: Remove.
	* top.c (use_windows): Remove.
remove obsolete declaration

deprecated_core_resize_section_table is declared but never defined.
This patch removes the stale declaration.

2014-01-13  Tom Tromey  <tromey@redhat.com>

	* gdbcore.h (deprecated_core_resize_section_table): Remove.
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