* elf32-arm.c (struct section_list): Remove.
(section_list): Remove typedef.
(record_section_with_arm_elf_section_data): Remove.
(find_arm_elf_section_entry): Remove.
(get_arm_elf_section_data): Use is_arm_elf.
(unrecord_section_with_arm_elf_section_data): Remove.
(elf32_arm_new_section_hook): Don't call
record_section_with_arm_elf_section_data.
(elf32_arm_write_section): Set mapcount to -1 when
the map has been used. Don't call
unrecord_section_with_arm_elf_section_data.
(unrecord_section_via_map_over_sections): Remove.
(elf32_arm_close_and_cleanup): Remove.
(elf32_arm_bfd_free_cached_info): Remove.
(bfd_elf32_close_and_cleanup): Don't define.
(bfd_elf32_bfd_free_cached_info): Don't define.