* gdbarch.sh (gdbarch_swap_ftype, deprecated_register_gdbarch_swap,
DEPRECATED_REGISTER_GDBARCH_SWAP): Remove.
(struct gdbarch_swap, struct gdbarch_swap_registration,
struct gdbarch_swap_registry, gdbarch_swap_registry,
current_gdbarch_swap_init_hack, current_gdbarch_swap_out_hack,
current_gdbarch_swap_in_hack): Remove.
(find_arch_by_info): Do not call current_gdbarch_swap_init_hack.
(gdbarch_find_by_info): Do not call current_gdbarch_swap_in_hack
and current_gdbarch_swap_out_hack, update current_gdbarch directly.
(deprecated_current_gdbarch_select_hack): Likewise.
* gdbarch.h, gdbarch.c: Regenerate.